1285274320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{3571}}^1$

素因数の和:4004

約数の個数: 80

約数和(自身を含む): 3268808640

約数和(自身を除く): 1983534320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 409, 440, 818, 880, 1636, 2045, 3272, 3571, 4090, 4499, 6544, 7142, 8180, 8998, 14284, 16360, 17855, 17996, 22495, 28568, 32720, 35710, 35992, 39281, 44990, 57136, 71420, 71984, 78562, 89980, 142840, 157124, 179960, 196405, 285680, 314248, 359920, 392810, 628496, 785620, 1460539, 1571240, 2921078, 3142480, 5842156, 7302695, 11684312, 14605390, 16065929, 23368624, 29210780, 32131858, 58421560, 64263716, 80329645, 116843120, 128527432, 160659290, 257054864, 321318580, 642637160, 1285274320]

約数ペア:

[(1, 1285274320), (2, 642637160), (4, 321318580), (5, 257054864), (8, 160659290), (10, 128527432), (11, 116843120), (16, 80329645), (20, 64263716), (22, 58421560), (40, 32131858), (44, 29210780), (55, 23368624), (80, 16065929), (88, 14605390), (110, 11684312), (176, 7302695), (220, 5842156), (409, 3142480), (440, 2921078), (818, 1571240), (880, 1460539), (1636, 785620), (2045, 628496), (3272, 392810), (3571, 359920), (4090, 314248), (4499, 285680), (6544, 196405), (7142, 179960), (8180, 157124), (8998, 142840), (14284, 89980), (16360, 78562), (17855, 71984), (17996, 71420), (22495, 57136), (28568, 44990), (32720, 39281), (35710, 35992)]