56346640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 150704640

約数和(自身を除く): 94358000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 239, 280, 421, 478, 560, 842, 956, 1195, 1673, 1684, 1912, 2105, 2390, 2947, 3346, 3368, 3824, 4210, 4780, 5894, 6692, 6736, 8365, 8420, 9560, 11788, 13384, 14735, 16730, 16840, 19120, 23576, 26768, 29470, 33460, 33680, 47152, 58940, 66920, 100619, 117880, 133840, 201238, 235760, 402476, 503095, 704333, 804952, 1006190, 1408666, 1609904, 2012380, 2817332, 3521665, 4024760, 5634664, 7043330, 8049520, 11269328, 14086660, 28173320, 56346640]

約数ペア:

[(1, 56346640), (2, 28173320), (4, 14086660), (5, 11269328), (7, 8049520), (8, 7043330), (10, 5634664), (14, 4024760), (16, 3521665), (20, 2817332), (28, 2012380), (35, 1609904), (40, 1408666), (56, 1006190), (70, 804952), (80, 704333), (112, 503095), (140, 402476), (239, 235760), (280, 201238), (421, 133840), (478, 117880), (560, 100619), (842, 66920), (956, 58940), (1195, 47152), (1673, 33680), (1684, 33460), (1912, 29470), (2105, 26768), (2390, 23576), (2947, 19120), (3346, 16840), (3368, 16730), (3824, 14735), (4210, 13384), (4780, 11788), (5894, 9560), (6692, 8420), (6736, 8365)]