557788780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{392809}}^1$

素因数の和:392889

約数の個数: 24

約数和(自身を含む): 1187857440

約数和(自身を除く): 630068660

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 392809, 785618, 1571236, 1964045, 3928090, 7856180, 27889439, 55778878, 111557756, 139447195, 278894390, 557788780]

約数ペア:

[(1, 557788780), (2, 278894390), (4, 139447195), (5, 111557756), (10, 55778878), (20, 27889439), (71, 7856180), (142, 3928090), (284, 1964045), (355, 1571236), (710, 785618), (1420, 392809)]