81516456

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{17971}}^1$

素因数の和:17996

約数の個数: 80

約数和(自身を含む): 260953440

約数和(自身を除く): 179436984

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 252, 324, 378, 504, 567, 648, 756, 1134, 1512, 2268, 4536, 17971, 35942, 53913, 71884, 107826, 125797, 143768, 161739, 215652, 251594, 323478, 377391, 431304, 485217, 503188, 646956, 754782, 970434, 1006376, 1132173, 1293912, 1455651, 1509564, 1940868, 2264346, 2911302, 3019128, 3396519, 3881736, 4528692, 5822604, 6793038, 9057384, 10189557, 11645208, 13586076, 20379114, 27172152, 40758228, 81516456]

約数ペア:

[(1, 81516456), (2, 40758228), (3, 27172152), (4, 20379114), (6, 13586076), (7, 11645208), (8, 10189557), (9, 9057384), (12, 6793038), (14, 5822604), (18, 4528692), (21, 3881736), (24, 3396519), (27, 3019128), (28, 2911302), (36, 2264346), (42, 1940868), (54, 1509564), (56, 1455651), (63, 1293912), (72, 1132173), (81, 1006376), (84, 970434), (108, 754782), (126, 646956), (162, 503188), (168, 485217), (189, 431304), (216, 377391), (252, 323478), (324, 251594), (378, 215652), (504, 161739), (567, 143768), (648, 125797), (756, 107826), (1134, 71884), (1512, 53913), (2268, 35942), (4536, 17971)]