19790090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63839}}^1$

素因数の和:63877

約数の個数: 16

約数和(自身を含む): 36771840

約数和(自身を除く): 16981750

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 63839, 127678, 319195, 638390, 1979009, 3958018, 9895045, 19790090]

約数ペア:

[(1, 19790090), (2, 9895045), (5, 3958018), (10, 1979009), (31, 638390), (62, 319195), (155, 127678), (310, 63839)]