15605820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1$

素因数の和:675

約数の個数: 72

約数和(自身を含む): 47698560

約数和(自身を除く): 32092740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 479, 543, 724, 905, 958, 1086, 1437, 1629, 1810, 1916, 2172, 2395, 2715, 2874, 3258, 3620, 4311, 4790, 5430, 5748, 6516, 7185, 8145, 8622, 9580, 10860, 14370, 16290, 17244, 21555, 28740, 32580, 43110, 86220, 86699, 173398, 260097, 346796, 433495, 520194, 780291, 866990, 1040388, 1300485, 1560582, 1733980, 2600970, 3121164, 3901455, 5201940, 7802910, 15605820]

約数ペア:

[(1, 15605820), (2, 7802910), (3, 5201940), (4, 3901455), (5, 3121164), (6, 2600970), (9, 1733980), (10, 1560582), (12, 1300485), (15, 1040388), (18, 866990), (20, 780291), (30, 520194), (36, 433495), (45, 346796), (60, 260097), (90, 173398), (180, 86699), (181, 86220), (362, 43110), (479, 32580), (543, 28740), (724, 21555), (905, 17244), (958, 16290), (1086, 14370), (1437, 10860), (1629, 9580), (1810, 8622), (1916, 8145), (2172, 7185), (2395, 6516), (2715, 5748), (2874, 5430), (3258, 4790), (3620, 4311)]