87986920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{314239}}^1$

素因数の和:314257

約数の個数: 32

約数和(自身を含む): 226252800

約数和(自身を除く): 138265880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 314239, 628478, 1256956, 1571195, 2199673, 2513912, 3142390, 4399346, 6284780, 8798692, 10998365, 12569560, 17597384, 21996730, 43993460, 87986920]

約数ペア:

[(1, 87986920), (2, 43993460), (4, 21996730), (5, 17597384), (7, 12569560), (8, 10998365), (10, 8798692), (14, 6284780), (20, 4399346), (28, 3142390), (35, 2513912), (40, 2199673), (56, 1571195), (70, 1256956), (140, 628478), (280, 314239)]