258995920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{23291}}^1$

素因数の和:23443

約数の個数: 40

約数和(自身を含む): 606523680

約数和(自身を除く): 347527760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 23291, 46582, 93164, 116455, 186328, 232910, 372656, 465820, 931640, 1863280, 3237449, 6474898, 12949796, 16187245, 25899592, 32374490, 51799184, 64748980, 129497960, 258995920]

約数ペア:

[(1, 258995920), (2, 129497960), (4, 64748980), (5, 51799184), (8, 32374490), (10, 25899592), (16, 16187245), (20, 12949796), (40, 6474898), (80, 3237449), (139, 1863280), (278, 931640), (556, 465820), (695, 372656), (1112, 232910), (1390, 186328), (2224, 116455), (2780, 93164), (5560, 46582), (11120, 23291)]