249779960

素因数分解:

$2^3\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{5531}}^1$

素因数の和:6671

約数の個数: 32

約数和(自身を含む): 562604400

約数和(自身を除く): 312824440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1129, 2258, 4516, 5531, 5645, 9032, 11062, 11290, 22124, 22580, 27655, 44248, 45160, 55310, 110620, 221240, 6244499, 12488998, 24977996, 31222495, 49955992, 62444990, 124889980, 249779960]

約数ペア:

[(1, 249779960), (2, 124889980), (4, 62444990), (5, 49955992), (8, 31222495), (10, 24977996), (20, 12488998), (40, 6244499), (1129, 221240), (2258, 110620), (4516, 55310), (5531, 45160), (5645, 44248), (9032, 27655), (11062, 22580), (11290, 22124)]