18128816

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 36527424

約数和(自身を除く): 18398608

約数列:

[1, 2, 4, 8, 16, 37, 74, 113, 148, 226, 271, 296, 452, 542, 592, 904, 1084, 1808, 2168, 4181, 4336, 8362, 10027, 16724, 20054, 30623, 33448, 40108, 61246, 66896, 80216, 122492, 160432, 244984, 489968, 1133051, 2266102, 4532204, 9064408, 18128816]

約数ペア:

[(1, 18128816), (2, 9064408), (4, 4532204), (8, 2266102), (16, 1133051), (37, 489968), (74, 244984), (113, 160432), (148, 122492), (226, 80216), (271, 66896), (296, 61246), (452, 40108), (542, 33448), (592, 30623), (904, 20054), (1084, 16724), (1808, 10027), (2168, 8362), (4181, 4336)]