15389820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{443}}^1$

素因数の和:651

約数の個数: 72

約数和(自身を含む): 47030256

約数和(自身を除く): 31640436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 193, 386, 443, 579, 772, 886, 965, 1158, 1329, 1737, 1772, 1930, 2215, 2316, 2658, 2895, 3474, 3860, 3987, 4430, 5316, 5790, 6645, 6948, 7974, 8685, 8860, 11580, 13290, 15948, 17370, 19935, 26580, 34740, 39870, 79740, 85499, 170998, 256497, 341996, 427495, 512994, 769491, 854990, 1025988, 1282485, 1538982, 1709980, 2564970, 3077964, 3847455, 5129940, 7694910, 15389820]

約数ペア:

[(1, 15389820), (2, 7694910), (3, 5129940), (4, 3847455), (5, 3077964), (6, 2564970), (9, 1709980), (10, 1538982), (12, 1282485), (15, 1025988), (18, 854990), (20, 769491), (30, 512994), (36, 427495), (45, 341996), (60, 256497), (90, 170998), (180, 85499), (193, 79740), (386, 39870), (443, 34740), (579, 26580), (772, 19935), (886, 17370), (965, 15948), (1158, 13290), (1329, 11580), (1737, 8860), (1772, 8685), (1930, 7974), (2215, 6948), (2316, 6645), (2658, 5790), (2895, 5316), (3474, 4430), (3860, 3987)]