127239320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{244691}}^1$

素因数の和:244715

約数の個数: 32

約数和(自身を含む): 308311920

約数和(自身を除く): 181072600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 244691, 489382, 978764, 1223455, 1957528, 2446910, 3180983, 4893820, 6361966, 9787640, 12723932, 15904915, 25447864, 31809830, 63619660, 127239320]

約数ペア:

[(1, 127239320), (2, 63619660), (4, 31809830), (5, 25447864), (8, 15904915), (10, 12723932), (13, 9787640), (20, 6361966), (26, 4893820), (40, 3180983), (52, 2446910), (65, 1957528), (104, 1223455), (130, 978764), (260, 489382), (520, 244691)]