89907980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{32341}}^1$

素因数の和:32489

約数の個数: 24

約数和(自身を含む): 190170960

約数和(自身を除く): 100262980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 32341, 64682, 129364, 161705, 323410, 646820, 4495399, 8990798, 17981596, 22476995, 44953990, 89907980]

約数ペア:

[(1, 89907980), (2, 44953990), (4, 22476995), (5, 17981596), (10, 8990798), (20, 4495399), (139, 646820), (278, 323410), (556, 161705), (695, 129364), (1390, 64682), (2780, 32341)]