20674416

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1663}}^1$

素因数の和:1718

約数の個数: 80

約数和(自身を含む): 62726144

約数和(自身を除く): 42051728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1663, 1776, 2072, 3108, 3326, 4144, 4989, 6216, 6652, 9978, 11641, 12432, 13304, 19956, 23282, 26608, 34923, 39912, 46564, 61531, 69846, 79824, 93128, 123062, 139692, 184593, 186256, 246124, 279384, 369186, 430717, 492248, 558768, 738372, 861434, 984496, 1292151, 1476744, 1722868, 2584302, 2953488, 3445736, 5168604, 6891472, 10337208, 20674416]

約数ペア:

[(1, 20674416), (2, 10337208), (3, 6891472), (4, 5168604), (6, 3445736), (7, 2953488), (8, 2584302), (12, 1722868), (14, 1476744), (16, 1292151), (21, 984496), (24, 861434), (28, 738372), (37, 558768), (42, 492248), (48, 430717), (56, 369186), (74, 279384), (84, 246124), (111, 186256), (112, 184593), (148, 139692), (168, 123062), (222, 93128), (259, 79824), (296, 69846), (336, 61531), (444, 46564), (518, 39912), (592, 34923), (777, 26608), (888, 23282), (1036, 19956), (1554, 13304), (1663, 12432), (1776, 11641), (2072, 9978), (3108, 6652), (3326, 6216), (4144, 4989)]