20320270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5197}}^1$

素因数の和:5244

約数の個数: 32

約数和(自身を含む): 40419648

約数和(自身を除く): 20099378

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 5197, 10394, 25985, 51970, 88349, 119531, 176698, 239062, 441745, 597655, 883490, 1195310, 2032027, 4064054, 10160135, 20320270]

約数ペア:

[(1, 20320270), (2, 10160135), (5, 4064054), (10, 2032027), (17, 1195310), (23, 883490), (34, 597655), (46, 441745), (85, 239062), (115, 176698), (170, 119531), (230, 88349), (391, 51970), (782, 25985), (1955, 10394), (3910, 5197)]