81211572

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{6427}}^1$

素因数の和:6459

約数の個数: 72

約数和(自身を含む): 229299616

約数和(自身を除く): 148088044

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 2106, 3159, 4212, 6318, 6427, 12636, 12854, 19281, 25708, 38562, 57843, 77124, 83551, 115686, 167102, 173529, 231372, 250653, 334204, 347058, 501306, 520587, 694116, 751959, 1002612, 1041174, 1503918, 1561761, 2082348, 2255877, 3007836, 3123522, 4511754, 6247044, 6767631, 9023508, 13535262, 20302893, 27070524, 40605786, 81211572]

約数ペア:

[(1, 81211572), (2, 40605786), (3, 27070524), (4, 20302893), (6, 13535262), (9, 9023508), (12, 6767631), (13, 6247044), (18, 4511754), (26, 3123522), (27, 3007836), (36, 2255877), (39, 2082348), (52, 1561761), (54, 1503918), (78, 1041174), (81, 1002612), (108, 751959), (117, 694116), (156, 520587), (162, 501306), (234, 347058), (243, 334204), (324, 250653), (351, 231372), (468, 173529), (486, 167102), (702, 115686), (972, 83551), (1053, 77124), (1404, 57843), (2106, 38562), (3159, 25708), (4212, 19281), (6318, 12854), (6427, 12636)]