1386280

素因数分解:

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

素因数の和:4969

約数の個数: 32

約数和(自身を含む): 3565440

約数和(自身を除く): 2179160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4951, 9902, 19804, 24755, 34657, 39608, 49510, 69314, 99020, 138628, 173285, 198040, 277256, 346570, 693140, 1386280]

約数ペア:

[(1, 1386280), (2, 693140), (4, 346570), (5, 277256), (7, 198040), (8, 173285), (10, 138628), (14, 99020), (20, 69314), (28, 49510), (35, 39608), (40, 34657), (56, 24755), (70, 19804), (140, 9902), (280, 4951)]