51881280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^3$

素因数の和:82

約数の個数: 224

約数和(自身を含む): 190926720

約数和(自身を除く): 139045440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 32, 33, 34, 40, 44, 48, 51, 55, 60, 64, 66, 68, 80, 85, 88, 96, 102, 110, 120, 132, 136, 160, 165, 170, 176, 187, 192, 204, 220, 240, 255, 264, 272, 289, 320, 330, 340, 352, 374, 408, 440, 480, 510, 528, 544, 561, 578, 660, 680, 704, 748, 816, 867, 880, 935, 960, 1020, 1056, 1088, 1122, 1156, 1320, 1360, 1445, 1496, 1632, 1734, 1760, 1870, 2040, 2112, 2244, 2312, 2640, 2720, 2805, 2890, 2992, 3179, 3264, 3468, 3520, 3740, 4080, 4335, 4488, 4624, 4913, 5280, 5440, 5610, 5780, 5984, 6358, 6936, 7480, 8160, 8670, 8976, 9248, 9537, 9826, 10560, 11220, 11560, 11968, 12716, 13872, 14739, 14960, 15895, 16320, 17340, 17952, 18496, 19074, 19652, 22440, 23120, 24565, 25432, 27744, 29478, 29920, 31790, 34680, 35904, 38148, 39304, 44880, 46240, 47685, 49130, 50864, 54043, 55488, 58956, 59840, 63580, 69360, 73695, 76296, 78608, 89760, 92480, 95370, 98260, 101728, 108086, 117912, 127160, 138720, 147390, 152592, 157216, 162129, 179520, 190740, 196520, 203456, 216172, 235824, 254320, 270215, 277440, 294780, 305184, 314432, 324258, 381480, 393040, 432344, 471648, 508640, 540430, 589560, 610368, 648516, 762960, 786080, 810645, 864688, 943296, 1017280, 1080860, 1179120, 1297032, 1525920, 1572160, 1621290, 1729376, 2161720, 2358240, 2594064, 3051840, 3242580, 3458752, 4323440, 4716480, 5188128, 6485160, 8646880, 10376256, 12970320, 17293760, 25940640, 51881280]

約数ペア:

[(1, 51881280), (2, 25940640), (3, 17293760), (4, 12970320), (5, 10376256), (6, 8646880), (8, 6485160), (10, 5188128), (11, 4716480), (12, 4323440), (15, 3458752), (16, 3242580), (17, 3051840), (20, 2594064), (22, 2358240), (24, 2161720), (30, 1729376), (32, 1621290), (33, 1572160), (34, 1525920), (40, 1297032), (44, 1179120), (48, 1080860), (51, 1017280), (55, 943296), (60, 864688), (64, 810645), (66, 786080), (68, 762960), (80, 648516), (85, 610368), (88, 589560), (96, 540430), (102, 508640), (110, 471648), (120, 432344), (132, 393040), (136, 381480), (160, 324258), (165, 314432), (170, 305184), (176, 294780), (187, 277440), (192, 270215), (204, 254320), (220, 235824), (240, 216172), (255, 203456), (264, 196520), (272, 190740), (289, 179520), (320, 162129), (330, 157216), (340, 152592), (352, 147390), (374, 138720), (408, 127160), (440, 117912), (480, 108086), (510, 101728), (528, 98260), (544, 95370), (561, 92480), (578, 89760), (660, 78608), (680, 76296), (704, 73695), (748, 69360), (816, 63580), (867, 59840), (880, 58956), (935, 55488), (960, 54043), (1020, 50864), (1056, 49130), (1088, 47685), (1122, 46240), (1156, 44880), (1320, 39304), (1360, 38148), (1445, 35904), (1496, 34680), (1632, 31790), (1734, 29920), (1760, 29478), (1870, 27744), (2040, 25432), (2112, 24565), (2244, 23120), (2312, 22440), (2640, 19652), (2720, 19074), (2805, 18496), (2890, 17952), (2992, 17340), (3179, 16320), (3264, 15895), (3468, 14960), (3520, 14739), (3740, 13872), (4080, 12716), (4335, 11968), (4488, 11560), (4624, 11220), (4913, 10560), (5280, 9826), (5440, 9537), (5610, 9248), (5780, 8976), (5984, 8670), (6358, 8160), (6936, 7480)]