664592440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1\times {\mathrm{1381}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 1531366560

約数和(自身を除く): 866774120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 227, 265, 424, 454, 530, 908, 1060, 1135, 1381, 1816, 2120, 2270, 2762, 4540, 5524, 6905, 9080, 11048, 12031, 13810, 24062, 27620, 48124, 55240, 60155, 73193, 96248, 120310, 146386, 240620, 292772, 313487, 365965, 481240, 585544, 626974, 731930, 1253948, 1463860, 1567435, 2507896, 2927720, 3134870, 6269740, 12539480, 16614811, 33229622, 66459244, 83074055, 132918488, 166148110, 332296220, 664592440]

約数ペア:

[(1, 664592440), (2, 332296220), (4, 166148110), (5, 132918488), (8, 83074055), (10, 66459244), (20, 33229622), (40, 16614811), (53, 12539480), (106, 6269740), (212, 3134870), (227, 2927720), (265, 2507896), (424, 1567435), (454, 1463860), (530, 1253948), (908, 731930), (1060, 626974), (1135, 585544), (1381, 481240), (1816, 365965), (2120, 313487), (2270, 292772), (2762, 240620), (4540, 146386), (5524, 120310), (6905, 96248), (9080, 73193), (11048, 60155), (12031, 55240), (13810, 48124), (24062, 27620)]