56919980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218923}}^1$

素因数の和:218945

約数の個数: 24

約数和(自身を含む): 128727312

約数和(自身を除く): 71807332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 218923, 437846, 875692, 1094615, 2189230, 2845999, 4378460, 5691998, 11383996, 14229995, 28459990, 56919980]

約数ペア:

[(1, 56919980), (2, 28459990), (4, 14229995), (5, 11383996), (10, 5691998), (13, 4378460), (20, 2845999), (26, 2189230), (52, 1094615), (65, 875692), (130, 437846), (260, 218923)]