20149250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 43670016

約数和(自身を除く): 23520766

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 125, 170, 187, 250, 275, 374, 425, 431, 550, 850, 862, 935, 1375, 1870, 2125, 2155, 2750, 4250, 4310, 4675, 4741, 7327, 9350, 9482, 10775, 14654, 21550, 23375, 23705, 36635, 46750, 47410, 53875, 73270, 80597, 107750, 118525, 161194, 183175, 237050, 366350, 402985, 592625, 805970, 915875, 1185250, 1831750, 2014925, 4029850, 10074625, 20149250]

約数ペア:

[(1, 20149250), (2, 10074625), (5, 4029850), (10, 2014925), (11, 1831750), (17, 1185250), (22, 915875), (25, 805970), (34, 592625), (50, 402985), (55, 366350), (85, 237050), (110, 183175), (125, 161194), (170, 118525), (187, 107750), (250, 80597), (275, 73270), (374, 53875), (425, 47410), (431, 46750), (550, 36635), (850, 23705), (862, 23375), (935, 21550), (1375, 14654), (1870, 10775), (2125, 9482), (2155, 9350), (2750, 7327), (4250, 4741), (4310, 4675)]