15156940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 17865140

約数列:

[1, 2, 4, 5, 10, 20, 53, 79, 106, 158, 181, 212, 265, 316, 362, 395, 530, 724, 790, 905, 1060, 1580, 1810, 3620, 4187, 8374, 9593, 14299, 16748, 19186, 20935, 28598, 38372, 41870, 47965, 57196, 71495, 83740, 95930, 142990, 191860, 285980, 757847, 1515694, 3031388, 3789235, 7578470, 15156940]

約数ペア:

[(1, 15156940), (2, 7578470), (4, 3789235), (5, 3031388), (10, 1515694), (20, 757847), (53, 285980), (79, 191860), (106, 142990), (158, 95930), (181, 83740), (212, 71495), (265, 57196), (316, 47965), (362, 41870), (395, 38372), (530, 28598), (724, 20935), (790, 19186), (905, 16748), (1060, 14299), (1580, 9593), (1810, 8374), (3620, 4187)]