18125200

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:532

約数の個数: 60

約数和(自身を含む): 44040708

約数和(自身を除く): 25915508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 200, 226, 400, 401, 452, 565, 802, 904, 1130, 1604, 1808, 2005, 2260, 2825, 3208, 4010, 4520, 5650, 6416, 8020, 9040, 10025, 11300, 16040, 20050, 22600, 32080, 40100, 45200, 45313, 80200, 90626, 160400, 181252, 226565, 362504, 453130, 725008, 906260, 1132825, 1812520, 2265650, 3625040, 4531300, 9062600, 18125200]

約数ペア:

[(1, 18125200), (2, 9062600), (4, 4531300), (5, 3625040), (8, 2265650), (10, 1812520), (16, 1132825), (20, 906260), (25, 725008), (40, 453130), (50, 362504), (80, 226565), (100, 181252), (113, 160400), (200, 90626), (226, 80200), (400, 45313), (401, 45200), (452, 40100), (565, 32080), (802, 22600), (904, 20050), (1130, 16040), (1604, 11300), (1808, 10025), (2005, 9040), (2260, 8020), (2825, 6416), (3208, 5650), (4010, 4520)]