215570680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{414559}}^1$

素因数の和:414583

約数の個数: 32

約数和(自身を含む): 522345600

約数和(自身を除く): 306774920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 414559, 829118, 1658236, 2072795, 3316472, 4145590, 5389267, 8291180, 10778534, 16582360, 21557068, 26946335, 43114136, 53892670, 107785340, 215570680]

約数ペア:

[(1, 215570680), (2, 107785340), (4, 53892670), (5, 43114136), (8, 26946335), (10, 21557068), (13, 16582360), (20, 10778534), (26, 8291180), (40, 5389267), (52, 4145590), (65, 3316472), (104, 2072795), (130, 1658236), (260, 829118), (520, 414559)]