8615709980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{286999}}^1$

素因数の和:287106

約数の個数: 48

約数和(自身を含む): 19286400000

約数和(自身を除く): 10670690020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010, 30020, 286999, 573998, 1147996, 1434995, 2869990, 5452981, 5739980, 10905962, 21811924, 22672921, 27264905, 45345842, 54529810, 90691684, 109059620, 113364605, 226729210, 430785499, 453458420, 861570998, 1723141996, 2153927495, 4307854990, 8615709980]

約数ペア:

[(1, 8615709980), (2, 4307854990), (4, 2153927495), (5, 1723141996), (10, 861570998), (19, 453458420), (20, 430785499), (38, 226729210), (76, 113364605), (79, 109059620), (95, 90691684), (158, 54529810), (190, 45345842), (316, 27264905), (380, 22672921), (395, 21811924), (790, 10905962), (1501, 5739980), (1580, 5452981), (3002, 2869990), (6004, 1434995), (7505, 1147996), (15010, 573998), (30020, 286999)]