812986640

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 1916544000

約数和(自身を除く): 1103557360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 223, 229, 398, 446, 458, 796, 892, 916, 995, 1115, 1145, 1592, 1784, 1832, 1990, 2230, 2290, 3184, 3568, 3664, 3980, 4460, 4580, 7960, 8920, 9160, 15920, 17840, 18320, 44377, 45571, 51067, 88754, 91142, 102134, 177508, 182284, 204268, 221885, 227855, 255335, 355016, 364568, 408536, 443770, 455710, 510670, 710032, 729136, 817072, 887540, 911420, 1021340, 1775080, 1822840, 2042680, 3550160, 3645680, 4085360, 10162333, 20324666, 40649332, 50811665, 81298664, 101623330, 162597328, 203246660, 406493320, 812986640]

約数ペア:

[(1, 812986640), (2, 406493320), (4, 203246660), (5, 162597328), (8, 101623330), (10, 81298664), (16, 50811665), (20, 40649332), (40, 20324666), (80, 10162333), (199, 4085360), (223, 3645680), (229, 3550160), (398, 2042680), (446, 1822840), (458, 1775080), (796, 1021340), (892, 911420), (916, 887540), (995, 817072), (1115, 729136), (1145, 710032), (1592, 510670), (1784, 455710), (1832, 443770), (1990, 408536), (2230, 364568), (2290, 355016), (3184, 255335), (3568, 227855), (3664, 221885), (3980, 204268), (4460, 182284), (4580, 177508), (7960, 102134), (8920, 91142), (9160, 88754), (15920, 51067), (17840, 45571), (18320, 44377)]