28987308

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{12781}}^1$

素因数の和:12804

約数の個数: 60

約数和(自身を含む): 86610832

約数和(自身を除く): 57623524

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 252, 324, 378, 567, 756, 1134, 2268, 12781, 25562, 38343, 51124, 76686, 89467, 115029, 153372, 178934, 230058, 268401, 345087, 357868, 460116, 536802, 690174, 805203, 1035261, 1073604, 1380348, 1610406, 2070522, 2415609, 3220812, 4141044, 4831218, 7246827, 9662436, 14493654, 28987308]

約数ペア:

[(1, 28987308), (2, 14493654), (3, 9662436), (4, 7246827), (6, 4831218), (7, 4141044), (9, 3220812), (12, 2415609), (14, 2070522), (18, 1610406), (21, 1380348), (27, 1073604), (28, 1035261), (36, 805203), (42, 690174), (54, 536802), (63, 460116), (81, 357868), (84, 345087), (108, 268401), (126, 230058), (162, 178934), (189, 153372), (252, 115029), (324, 89467), (378, 76686), (567, 51124), (756, 38343), (1134, 25562), (2268, 12781)]