15831660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20297}}^1$

素因数の和:20322

約数の個数: 48

約数和(自身を含む): 47740896

約数和(自身を除く): 31909236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20297, 40594, 60891, 81188, 101485, 121782, 202970, 243564, 263861, 304455, 405940, 527722, 608910, 791583, 1055444, 1217820, 1319305, 1583166, 2638610, 3166332, 3957915, 5277220, 7915830, 15831660]

約数ペア:

[(1, 15831660), (2, 7915830), (3, 5277220), (4, 3957915), (5, 3166332), (6, 2638610), (10, 1583166), (12, 1319305), (13, 1217820), (15, 1055444), (20, 791583), (26, 608910), (30, 527722), (39, 405940), (52, 304455), (60, 263861), (65, 243564), (78, 202970), (130, 121782), (156, 101485), (195, 81188), (260, 60891), (390, 40594), (780, 20297)]