18572876

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 39009600

約数和(自身を除く): 20436724

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 89, 116, 178, 203, 257, 356, 406, 514, 623, 812, 1028, 1246, 1799, 2492, 2581, 3598, 5162, 7196, 7453, 10324, 14906, 18067, 22873, 29812, 36134, 45746, 52171, 72268, 91492, 104342, 160111, 208684, 320222, 640444, 663317, 1326634, 2653268, 4643219, 9286438, 18572876]

約数ペア:

[(1, 18572876), (2, 9286438), (4, 4643219), (7, 2653268), (14, 1326634), (28, 663317), (29, 640444), (58, 320222), (89, 208684), (116, 160111), (178, 104342), (203, 91492), (257, 72268), (356, 52171), (406, 45746), (514, 36134), (623, 29812), (812, 22873), (1028, 18067), (1246, 14906), (1799, 10324), (2492, 7453), (2581, 7196), (3598, 5162)]