81578028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23687}}^1$

素因数の和:23742

約数の個数: 48

約数和(自身を含む): 222856704

約数和(自身を除く): 141278676

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 82, 84, 123, 164, 246, 287, 492, 574, 861, 1148, 1722, 3444, 23687, 47374, 71061, 94748, 142122, 165809, 284244, 331618, 497427, 663236, 971167, 994854, 1942334, 1989708, 2913501, 3884668, 5827002, 6798169, 11654004, 13596338, 20394507, 27192676, 40789014, 81578028]

約数ペア:

[(1, 81578028), (2, 40789014), (3, 27192676), (4, 20394507), (6, 13596338), (7, 11654004), (12, 6798169), (14, 5827002), (21, 3884668), (28, 2913501), (41, 1989708), (42, 1942334), (82, 994854), (84, 971167), (123, 663236), (164, 497427), (246, 331618), (287, 284244), (492, 165809), (574, 142122), (861, 94748), (1148, 71061), (1722, 47374), (3444, 23687)]