390728

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^2$

素因数の和:66

約数の個数: 36

約数和(自身を含む): 842715

約数和(自身を除く): 451987

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 169, 221, 289, 338, 442, 578, 676, 884, 1156, 1352, 1768, 2312, 2873, 3757, 5746, 7514, 11492, 15028, 22984, 30056, 48841, 97682, 195364, 390728]

約数ペア:

[(1, 390728), (2, 195364), (4, 97682), (8, 48841), (13, 30056), (17, 22984), (26, 15028), (34, 11492), (52, 7514), (68, 5746), (104, 3757), (136, 2873), (169, 2312), (221, 1768), (289, 1352), (338, 1156), (442, 884), (578, 676)]