19571940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{479}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 40182300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 227, 454, 479, 681, 908, 958, 1135, 1362, 1437, 1916, 2043, 2270, 2395, 2724, 2874, 3405, 4086, 4311, 4540, 4790, 5748, 6810, 7185, 8172, 8622, 9580, 10215, 13620, 14370, 17244, 20430, 21555, 28740, 40860, 43110, 86220, 108733, 217466, 326199, 434932, 543665, 652398, 978597, 1087330, 1304796, 1630995, 1957194, 2174660, 3261990, 3914388, 4892985, 6523980, 9785970, 19571940]

約数ペア:

[(1, 19571940), (2, 9785970), (3, 6523980), (4, 4892985), (5, 3914388), (6, 3261990), (9, 2174660), (10, 1957194), (12, 1630995), (15, 1304796), (18, 1087330), (20, 978597), (30, 652398), (36, 543665), (45, 434932), (60, 326199), (90, 217466), (180, 108733), (227, 86220), (454, 43110), (479, 40860), (681, 28740), (908, 21555), (958, 20430), (1135, 17244), (1362, 14370), (1437, 13620), (1916, 10215), (2043, 9580), (2270, 8622), (2395, 8172), (2724, 7185), (2874, 6810), (3405, 5748), (4086, 4790), (4311, 4540)]