638963260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{15077}}^1$

素因数の和:15262

約数の個数: 48

約数和(自身を含む): 1454001696

約数和(自身を除く): 815038436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 652, 815, 1630, 2119, 3260, 4238, 8476, 10595, 15077, 21190, 30154, 42380, 60308, 75385, 150770, 196001, 301540, 392002, 784004, 980005, 1960010, 2457551, 3920020, 4915102, 9830204, 12287755, 24575510, 31948163, 49151020, 63896326, 127792652, 159740815, 319481630, 638963260]

約数ペア:

[(1, 638963260), (2, 319481630), (4, 159740815), (5, 127792652), (10, 63896326), (13, 49151020), (20, 31948163), (26, 24575510), (52, 12287755), (65, 9830204), (130, 4915102), (163, 3920020), (260, 2457551), (326, 1960010), (652, 980005), (815, 784004), (1630, 392002), (2119, 301540), (3260, 196001), (4238, 150770), (8476, 75385), (10595, 60308), (15077, 42380), (21190, 30154)]