20077680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:96

約数の個数: 320

約数和(自身を含む): 81423360

約数和(自身を除く): 61345680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 19, 20, 21, 24, 28, 30, 34, 35, 37, 38, 40, 42, 48, 51, 56, 57, 60, 68, 70, 74, 76, 80, 84, 85, 95, 102, 105, 111, 112, 114, 119, 120, 133, 136, 140, 148, 152, 168, 170, 185, 190, 204, 210, 222, 228, 238, 240, 255, 259, 266, 272, 280, 285, 296, 304, 323, 336, 340, 357, 370, 380, 399, 408, 420, 444, 456, 476, 510, 518, 532, 555, 560, 570, 592, 595, 629, 646, 665, 680, 703, 714, 740, 760, 777, 798, 816, 840, 888, 912, 952, 969, 1020, 1036, 1064, 1110, 1140, 1190, 1258, 1292, 1295, 1330, 1360, 1406, 1428, 1480, 1520, 1554, 1596, 1615, 1680, 1776, 1785, 1887, 1904, 1938, 1995, 2040, 2072, 2109, 2128, 2220, 2261, 2280, 2380, 2516, 2584, 2590, 2660, 2812, 2856, 2960, 3108, 3145, 3192, 3230, 3515, 3570, 3774, 3876, 3885, 3990, 4080, 4144, 4218, 4403, 4440, 4522, 4560, 4760, 4845, 4921, 5032, 5168, 5180, 5320, 5624, 5712, 6216, 6290, 6384, 6460, 6783, 7030, 7140, 7548, 7752, 7770, 7980, 8436, 8806, 8880, 9044, 9435, 9520, 9690, 9842, 10064, 10360, 10545, 10640, 11248, 11305, 11951, 12432, 12580, 12920, 13209, 13566, 14060, 14280, 14763, 15096, 15504, 15540, 15960, 16872, 17612, 18088, 18870, 19380, 19684, 20720, 21090, 22015, 22610, 23902, 24605, 25160, 25840, 26418, 27132, 28120, 28560, 29526, 30192, 31080, 31920, 33744, 33915, 35224, 35853, 36176, 37740, 38760, 39368, 42180, 44030, 45220, 47804, 49210, 50320, 52836, 54264, 56240, 59052, 59755, 62160, 66045, 67830, 70448, 71706, 73815, 75480, 77520, 78736, 83657, 84360, 88060, 90440, 95608, 98420, 105672, 108528, 118104, 119510, 132090, 135660, 143412, 147630, 150960, 167314, 168720, 176120, 179265, 180880, 191216, 196840, 211344, 236208, 239020, 250971, 264180, 271320, 286824, 295260, 334628, 352240, 358530, 393680, 418285, 478040, 501942, 528360, 542640, 573648, 590520, 669256, 717060, 836570, 956080, 1003884, 1056720, 1181040, 1254855, 1338512, 1434120, 1673140, 2007768, 2509710, 2868240, 3346280, 4015536, 5019420, 6692560, 10038840, 20077680]

約数ペア:

[(1, 20077680), (2, 10038840), (3, 6692560), (4, 5019420), (5, 4015536), (6, 3346280), (7, 2868240), (8, 2509710), (10, 2007768), (12, 1673140), (14, 1434120), (15, 1338512), (16, 1254855), (17, 1181040), (19, 1056720), (20, 1003884), (21, 956080), (24, 836570), (28, 717060), (30, 669256), (34, 590520), (35, 573648), (37, 542640), (38, 528360), (40, 501942), (42, 478040), (48, 418285), (51, 393680), (56, 358530), (57, 352240), (60, 334628), (68, 295260), (70, 286824), (74, 271320), (76, 264180), (80, 250971), (84, 239020), (85, 236208), (95, 211344), (102, 196840), (105, 191216), (111, 180880), (112, 179265), (114, 176120), (119, 168720), (120, 167314), (133, 150960), (136, 147630), (140, 143412), (148, 135660), (152, 132090), (168, 119510), (170, 118104), (185, 108528), (190, 105672), (204, 98420), (210, 95608), (222, 90440), (228, 88060), (238, 84360), (240, 83657), (255, 78736), (259, 77520), (266, 75480), (272, 73815), (280, 71706), (285, 70448), (296, 67830), (304, 66045), (323, 62160), (336, 59755), (340, 59052), (357, 56240), (370, 54264), (380, 52836), (399, 50320), (408, 49210), (420, 47804), (444, 45220), (456, 44030), (476, 42180), (510, 39368), (518, 38760), (532, 37740), (555, 36176), (560, 35853), (570, 35224), (592, 33915), (595, 33744), (629, 31920), (646, 31080), (665, 30192), (680, 29526), (703, 28560), (714, 28120), (740, 27132), (760, 26418), (777, 25840), (798, 25160), (816, 24605), (840, 23902), (888, 22610), (912, 22015), (952, 21090), (969, 20720), (1020, 19684), (1036, 19380), (1064, 18870), (1110, 18088), (1140, 17612), (1190, 16872), (1258, 15960), (1292, 15540), (1295, 15504), (1330, 15096), (1360, 14763), (1406, 14280), (1428, 14060), (1480, 13566), (1520, 13209), (1554, 12920), (1596, 12580), (1615, 12432), (1680, 11951), (1776, 11305), (1785, 11248), (1887, 10640), (1904, 10545), (1938, 10360), (1995, 10064), (2040, 9842), (2072, 9690), (2109, 9520), (2128, 9435), (2220, 9044), (2261, 8880), (2280, 8806), (2380, 8436), (2516, 7980), (2584, 7770), (2590, 7752), (2660, 7548), (2812, 7140), (2856, 7030), (2960, 6783), (3108, 6460), (3145, 6384), (3192, 6290), (3230, 6216), (3515, 5712), (3570, 5624), (3774, 5320), (3876, 5180), (3885, 5168), (3990, 5032), (4080, 4921), (4144, 4845), (4218, 4760), (4403, 4560), (4440, 4522)]