21587280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 320

約数和(自身を含む): 85494528

約数和(自身を除く): 63907248

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 17, 20, 22, 24, 26, 30, 33, 34, 37, 39, 40, 44, 48, 51, 52, 55, 60, 65, 66, 68, 74, 78, 80, 85, 88, 102, 104, 110, 111, 120, 130, 132, 136, 143, 148, 156, 165, 170, 176, 185, 187, 195, 204, 208, 220, 221, 222, 240, 255, 260, 264, 272, 286, 296, 312, 330, 340, 370, 374, 390, 407, 408, 429, 440, 442, 444, 481, 510, 520, 528, 555, 561, 572, 592, 624, 629, 660, 663, 680, 715, 740, 748, 780, 814, 816, 858, 880, 884, 888, 935, 962, 1020, 1040, 1105, 1110, 1122, 1144, 1221, 1258, 1320, 1326, 1360, 1430, 1443, 1480, 1496, 1560, 1628, 1716, 1768, 1776, 1870, 1887, 1924, 2035, 2040, 2145, 2210, 2220, 2244, 2288, 2405, 2431, 2442, 2516, 2640, 2652, 2805, 2860, 2886, 2960, 2992, 3120, 3145, 3256, 3315, 3432, 3536, 3740, 3774, 3848, 4070, 4080, 4290, 4420, 4440, 4488, 4810, 4862, 4884, 5032, 5291, 5304, 5610, 5720, 5772, 6105, 6290, 6512, 6630, 6864, 6919, 7215, 7293, 7480, 7548, 7696, 8140, 8177, 8580, 8840, 8880, 8976, 9435, 9620, 9724, 9768, 10064, 10582, 10608, 11220, 11440, 11544, 12155, 12210, 12580, 13260, 13838, 14430, 14586, 14960, 15096, 15873, 16280, 16354, 17160, 17680, 18870, 19240, 19448, 19536, 20757, 21164, 22440, 23088, 24310, 24420, 24531, 25160, 26455, 26520, 27676, 28860, 29172, 30192, 31746, 32560, 32708, 34320, 34595, 36465, 37740, 38480, 38896, 40885, 41514, 42328, 44880, 48620, 48840, 49062, 50320, 52910, 53040, 55352, 57720, 58344, 63492, 65416, 69190, 72930, 75480, 79365, 81770, 83028, 84656, 89947, 97240, 97680, 98124, 103785, 105820, 110704, 115440, 116688, 122655, 126984, 130832, 138380, 145860, 150960, 158730, 163540, 166056, 179894, 194480, 196248, 207570, 211640, 245310, 253968, 269841, 276760, 291720, 317460, 327080, 332112, 359788, 392496, 415140, 423280, 449735, 490620, 539682, 553520, 583440, 634920, 654160, 719576, 830280, 899470, 981240, 1079364, 1269840, 1349205, 1439152, 1660560, 1798940, 1962480, 2158728, 2698410, 3597880, 4317456, 5396820, 7195760, 10793640, 21587280]

約数ペア:

[(1, 21587280), (2, 10793640), (3, 7195760), (4, 5396820), (5, 4317456), (6, 3597880), (8, 2698410), (10, 2158728), (11, 1962480), (12, 1798940), (13, 1660560), (15, 1439152), (16, 1349205), (17, 1269840), (20, 1079364), (22, 981240), (24, 899470), (26, 830280), (30, 719576), (33, 654160), (34, 634920), (37, 583440), (39, 553520), (40, 539682), (44, 490620), (48, 449735), (51, 423280), (52, 415140), (55, 392496), (60, 359788), (65, 332112), (66, 327080), (68, 317460), (74, 291720), (78, 276760), (80, 269841), (85, 253968), (88, 245310), (102, 211640), (104, 207570), (110, 196248), (111, 194480), (120, 179894), (130, 166056), (132, 163540), (136, 158730), (143, 150960), (148, 145860), (156, 138380), (165, 130832), (170, 126984), (176, 122655), (185, 116688), (187, 115440), (195, 110704), (204, 105820), (208, 103785), (220, 98124), (221, 97680), (222, 97240), (240, 89947), (255, 84656), (260, 83028), (264, 81770), (272, 79365), (286, 75480), (296, 72930), (312, 69190), (330, 65416), (340, 63492), (370, 58344), (374, 57720), (390, 55352), (407, 53040), (408, 52910), (429, 50320), (440, 49062), (442, 48840), (444, 48620), (481, 44880), (510, 42328), (520, 41514), (528, 40885), (555, 38896), (561, 38480), (572, 37740), (592, 36465), (624, 34595), (629, 34320), (660, 32708), (663, 32560), (680, 31746), (715, 30192), (740, 29172), (748, 28860), (780, 27676), (814, 26520), (816, 26455), (858, 25160), (880, 24531), (884, 24420), (888, 24310), (935, 23088), (962, 22440), (1020, 21164), (1040, 20757), (1105, 19536), (1110, 19448), (1122, 19240), (1144, 18870), (1221, 17680), (1258, 17160), (1320, 16354), (1326, 16280), (1360, 15873), (1430, 15096), (1443, 14960), (1480, 14586), (1496, 14430), (1560, 13838), (1628, 13260), (1716, 12580), (1768, 12210), (1776, 12155), (1870, 11544), (1887, 11440), (1924, 11220), (2035, 10608), (2040, 10582), (2145, 10064), (2210, 9768), (2220, 9724), (2244, 9620), (2288, 9435), (2405, 8976), (2431, 8880), (2442, 8840), (2516, 8580), (2640, 8177), (2652, 8140), (2805, 7696), (2860, 7548), (2886, 7480), (2960, 7293), (2992, 7215), (3120, 6919), (3145, 6864), (3256, 6630), (3315, 6512), (3432, 6290), (3536, 6105), (3740, 5772), (3774, 5720), (3848, 5610), (4070, 5304), (4080, 5291), (4290, 5032), (4420, 4884), (4440, 4862), (4488, 4810)]