18265156

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 41818560

約数和(自身を除く): 23553404

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 139, 182, 247, 266, 278, 361, 364, 494, 532, 556, 722, 973, 988, 1444, 1729, 1807, 1946, 2527, 2641, 3458, 3614, 3892, 4693, 5054, 5282, 6916, 7228, 9386, 10108, 10564, 12649, 18487, 18772, 25298, 32851, 34333, 36974, 50179, 50596, 65702, 68666, 73948, 100358, 131404, 137332, 200716, 240331, 351253, 480662, 652327, 702506, 961324, 1304654, 1405012, 2609308, 4566289, 9132578, 18265156]

約数ペア:

[(1, 18265156), (2, 9132578), (4, 4566289), (7, 2609308), (13, 1405012), (14, 1304654), (19, 961324), (26, 702506), (28, 652327), (38, 480662), (52, 351253), (76, 240331), (91, 200716), (133, 137332), (139, 131404), (182, 100358), (247, 73948), (266, 68666), (278, 65702), (361, 50596), (364, 50179), (494, 36974), (532, 34333), (556, 32851), (722, 25298), (973, 18772), (988, 18487), (1444, 12649), (1729, 10564), (1807, 10108), (1946, 9386), (2527, 7228), (2641, 6916), (3458, 5282), (3614, 5054), (3892, 4693)]