286134920

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{8713}}^1$

素因数の和:9545

約数の個数: 32

約数和(自身を含む): 644661720

約数和(自身を除く): 358526800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 3284, 4105, 6568, 8210, 8713, 16420, 17426, 32840, 34852, 43565, 69704, 87130, 174260, 348520, 7153373, 14306746, 28613492, 35766865, 57226984, 71533730, 143067460, 286134920]

約数ペア:

[(1, 286134920), (2, 143067460), (4, 71533730), (5, 57226984), (8, 35766865), (10, 28613492), (20, 14306746), (40, 7153373), (821, 348520), (1642, 174260), (3284, 87130), (4105, 69704), (6568, 43565), (8210, 34852), (8713, 32840), (16420, 17426)]