81790520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{4951}}^1$

素因数の和:5028

約数の個数: 64

約数和(自身を含む): 213926400

約数和(自身を除く): 132135880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1180, 1652, 2065, 2360, 3304, 4130, 4951, 8260, 9902, 16520, 19804, 24755, 34657, 39608, 49510, 69314, 99020, 138628, 173285, 198040, 277256, 292109, 346570, 584218, 693140, 1168436, 1386280, 1460545, 2044763, 2336872, 2921090, 4089526, 5842180, 8179052, 10223815, 11684360, 16358104, 20447630, 40895260, 81790520]

約数ペア:

[(1, 81790520), (2, 40895260), (4, 20447630), (5, 16358104), (7, 11684360), (8, 10223815), (10, 8179052), (14, 5842180), (20, 4089526), (28, 2921090), (35, 2336872), (40, 2044763), (56, 1460545), (59, 1386280), (70, 1168436), (118, 693140), (140, 584218), (236, 346570), (280, 292109), (295, 277256), (413, 198040), (472, 173285), (590, 138628), (826, 99020), (1180, 69314), (1652, 49510), (2065, 39608), (2360, 34657), (3304, 24755), (4130, 19804), (4951, 16520), (8260, 9902)]