639984704

素因数分解:

$2^6\times {\mathrm{9999761}}^1$

素因数の和:9999773

約数の個数: 14

約数和(自身を含む): 1269969774

約数和(自身を除く): 629985070

約数列:

[1, 2, 4, 8, 16, 32, 64, 9999761, 19999522, 39999044, 79998088, 159996176, 319992352, 639984704]

約数ペア:

[(1, 639984704), (2, 319992352), (4, 159996176), (8, 79998088), (16, 39999044), (32, 19999522), (64, 9999761)]