61512980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43319}}^1$

素因数の和:43399

約数の個数: 24

約数和(自身を含む): 130999680

約数和(自身を除く): 69486700

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 43319, 86638, 173276, 216595, 433190, 866380, 3075649, 6151298, 12302596, 15378245, 30756490, 61512980]

約数ペア:

[(1, 61512980), (2, 30756490), (4, 15378245), (5, 12302596), (10, 6151298), (20, 3075649), (71, 866380), (142, 433190), (284, 216595), (355, 173276), (710, 86638), (1420, 43319)]