20158430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^2$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 40960080

約数和(自身を除く): 20801650

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 79, 85, 95, 158, 170, 190, 323, 395, 646, 790, 1343, 1501, 1615, 2686, 3002, 3230, 6241, 6715, 7505, 12482, 13430, 15010, 25517, 31205, 51034, 62410, 106097, 118579, 127585, 212194, 237158, 255170, 530485, 592895, 1060970, 1185790, 2015843, 4031686, 10079215, 20158430]

約数ペア:

[(1, 20158430), (2, 10079215), (5, 4031686), (10, 2015843), (17, 1185790), (19, 1060970), (34, 592895), (38, 530485), (79, 255170), (85, 237158), (95, 212194), (158, 127585), (170, 118579), (190, 106097), (323, 62410), (395, 51034), (646, 31205), (790, 25517), (1343, 15010), (1501, 13430), (1615, 12482), (2686, 7505), (3002, 6715), (3230, 6241)]