12971620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4951}}^1$

素因数の和:5091

約数の個数: 24

約数和(自身を含む): 27453888

約数和(自身を除く): 14482268

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4951, 9902, 19804, 24755, 49510, 99020, 648581, 1297162, 2594324, 3242905, 6485810, 12971620]

約数ペア:

[(1, 12971620), (2, 6485810), (4, 3242905), (5, 2594324), (10, 1297162), (20, 648581), (131, 99020), (262, 49510), (524, 24755), (655, 19804), (1310, 9902), (2620, 4951)]