215424560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{207139}}^1$

素因数の和:207165

約数の個数: 40

約数和(自身を含む): 539392560

約数和(自身を除く): 323968000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 207139, 414278, 828556, 1035695, 1657112, 2071390, 2692807, 3314224, 4142780, 5385614, 8285560, 10771228, 13464035, 16571120, 21542456, 26928070, 43084912, 53856140, 107712280, 215424560]

約数ペア:

[(1, 215424560), (2, 107712280), (4, 53856140), (5, 43084912), (8, 26928070), (10, 21542456), (13, 16571120), (16, 13464035), (20, 10771228), (26, 8285560), (40, 5385614), (52, 4142780), (65, 3314224), (80, 2692807), (104, 2071390), (130, 1657112), (208, 1035695), (260, 828556), (520, 414278), (1040, 207139)]