64766640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{641}}^1$

素因数の和:1078

約数の個数: 80

約数和(自身を含む): 201567456

約数和(自身を除く): 136800816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 421, 641, 842, 1263, 1282, 1684, 1923, 2105, 2526, 2564, 3205, 3368, 3846, 4210, 5052, 5128, 6315, 6410, 6736, 7692, 8420, 9615, 10104, 10256, 12630, 12820, 15384, 16840, 19230, 20208, 25260, 25640, 30768, 33680, 38460, 50520, 51280, 76920, 101040, 153840, 269861, 539722, 809583, 1079444, 1349305, 1619166, 2158888, 2698610, 3238332, 4047915, 4317776, 5397220, 6476664, 8095830, 10794440, 12953328, 16191660, 21588880, 32383320, 64766640]

約数ペア:

[(1, 64766640), (2, 32383320), (3, 21588880), (4, 16191660), (5, 12953328), (6, 10794440), (8, 8095830), (10, 6476664), (12, 5397220), (15, 4317776), (16, 4047915), (20, 3238332), (24, 2698610), (30, 2158888), (40, 1619166), (48, 1349305), (60, 1079444), (80, 809583), (120, 539722), (240, 269861), (421, 153840), (641, 101040), (842, 76920), (1263, 51280), (1282, 50520), (1684, 38460), (1923, 33680), (2105, 30768), (2526, 25640), (2564, 25260), (3205, 20208), (3368, 19230), (3846, 16840), (4210, 15384), (5052, 12820), (5128, 12630), (6315, 10256), (6410, 10104), (6736, 9615), (7692, 8420)]