396687890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2087831}}^1$

素因数の和:2087857

約数の個数: 16

約数和(自身を含む): 751619520

約数和(自身を除く): 354931630

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 2087831, 4175662, 10439155, 20878310, 39668789, 79337578, 198343945, 396687890]

約数ペア:

[(1, 396687890), (2, 198343945), (5, 79337578), (10, 39668789), (19, 20878310), (38, 10439155), (95, 4175662), (190, 2087831)]