80495200

素因数分解:

$2^5\times 5^2\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:680

約数の個数: 72

約数和(自身を含む): 197799840

約数和(自身を除く): 117304640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 239, 400, 421, 478, 800, 842, 956, 1195, 1684, 1912, 2105, 2390, 3368, 3824, 4210, 4780, 5975, 6736, 7648, 8420, 9560, 10525, 11950, 13472, 16840, 19120, 21050, 23900, 33680, 38240, 42100, 47800, 67360, 84200, 95600, 100619, 168400, 191200, 201238, 336800, 402476, 503095, 804952, 1006190, 1609904, 2012380, 2515475, 3219808, 4024760, 5030950, 8049520, 10061900, 16099040, 20123800, 40247600, 80495200]

約数ペア:

[(1, 80495200), (2, 40247600), (4, 20123800), (5, 16099040), (8, 10061900), (10, 8049520), (16, 5030950), (20, 4024760), (25, 3219808), (32, 2515475), (40, 2012380), (50, 1609904), (80, 1006190), (100, 804952), (160, 503095), (200, 402476), (239, 336800), (400, 201238), (421, 191200), (478, 168400), (800, 100619), (842, 95600), (956, 84200), (1195, 67360), (1684, 47800), (1912, 42100), (2105, 38240), (2390, 33680), (3368, 23900), (3824, 21050), (4210, 19120), (4780, 16840), (5975, 13472), (6736, 11950), (7648, 10525), (8420, 9560)]