15561520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1151}}^1$

素因数の和:1190

約数の個数: 60

約数和(自身を含む): 39211776

約数和(自身を除く): 23650256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1151, 1352, 1690, 2302, 2704, 3380, 4604, 5755, 6760, 9208, 11510, 13520, 14963, 18416, 23020, 29926, 46040, 59852, 74815, 92080, 119704, 149630, 194519, 239408, 299260, 389038, 598520, 778076, 972595, 1197040, 1556152, 1945190, 3112304, 3890380, 7780760, 15561520]

約数ペア:

[(1, 15561520), (2, 7780760), (4, 3890380), (5, 3112304), (8, 1945190), (10, 1556152), (13, 1197040), (16, 972595), (20, 778076), (26, 598520), (40, 389038), (52, 299260), (65, 239408), (80, 194519), (104, 149630), (130, 119704), (169, 92080), (208, 74815), (260, 59852), (338, 46040), (520, 29926), (676, 23020), (845, 18416), (1040, 14963), (1151, 13520), (1352, 11510), (1690, 9208), (2302, 6760), (2704, 5755), (3380, 4604)]