80457916660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1571}}^1\times {\mathrm{21163}}^1$

素因数の和:22765

約数の個数: 72

約数和(自身を含む): 185845147488

約数和(自身を除く): 105387230828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 1571, 2420, 3142, 6284, 7855, 15710, 17281, 21163, 31420, 34562, 42326, 69124, 84652, 86405, 105815, 172810, 190091, 211630, 232793, 345620, 380182, 423260, 465586, 760364, 931172, 950455, 1163965, 1900910, 2327930, 2560723, 3801820, 4655860, 5121446, 10242892, 12803615, 25607230, 33247073, 51214460, 66494146, 132988292, 166235365, 332470730, 365717803, 664941460, 731435606, 1462871212, 1828589015, 3657178030, 4022895833, 7314356060, 8045791666, 16091583332, 20114479165, 40228958330, 80457916660]

約数ペア:

[(1, 80457916660), (2, 40228958330), (4, 20114479165), (5, 16091583332), (10, 8045791666), (11, 7314356060), (20, 4022895833), (22, 3657178030), (44, 1828589015), (55, 1462871212), (110, 731435606), (121, 664941460), (220, 365717803), (242, 332470730), (484, 166235365), (605, 132988292), (1210, 66494146), (1571, 51214460), (2420, 33247073), (3142, 25607230), (6284, 12803615), (7855, 10242892), (15710, 5121446), (17281, 4655860), (21163, 3801820), (31420, 2560723), (34562, 2327930), (42326, 1900910), (69124, 1163965), (84652, 950455), (86405, 931172), (105815, 760364), (172810, 465586), (190091, 423260), (211630, 380182), (232793, 345620)]