13205128040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25394477}}^1$

素因数の和:25394501

約数の個数: 32

約数和(自身を含む): 31997042280

約数和(自身を除く): 18791914240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 25394477, 50788954, 101577908, 126972385, 203155816, 253944770, 330128201, 507889540, 660256402, 1015779080, 1320512804, 1650641005, 2641025608, 3301282010, 6602564020, 13205128040]

約数ペア:

[(1, 13205128040), (2, 6602564020), (4, 3301282010), (5, 2641025608), (8, 1650641005), (10, 1320512804), (13, 1015779080), (20, 660256402), (26, 507889540), (40, 330128201), (52, 253944770), (65, 203155816), (104, 126972385), (130, 101577908), (260, 50788954), (520, 25394477)]