78783160

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2399}}^1$

素因数の和:3231

約数の個数: 32

約数和(自身を含む): 177552000

約数和(自身を除く): 98768840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 2399, 3284, 4105, 4798, 6568, 8210, 9596, 11995, 16420, 19192, 23990, 32840, 47980, 95960, 1969579, 3939158, 7878316, 9847895, 15756632, 19695790, 39391580, 78783160]

約数ペア:

[(1, 78783160), (2, 39391580), (4, 19695790), (5, 15756632), (8, 9847895), (10, 7878316), (20, 3939158), (40, 1969579), (821, 95960), (1642, 47980), (2399, 32840), (3284, 23990), (4105, 19192), (4798, 16420), (6568, 11995), (8210, 9596)]