20674490

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 38807424

約数和(自身を除く): 18132934

約数列:

[1, 2, 5, 10, 37, 71, 74, 142, 185, 355, 370, 710, 787, 1574, 2627, 3935, 5254, 7870, 13135, 26270, 29119, 55877, 58238, 111754, 145595, 279385, 291190, 558770, 2067449, 4134898, 10337245, 20674490]

約数ペア:

[(1, 20674490), (2, 10337245), (5, 4134898), (10, 2067449), (37, 558770), (71, 291190), (74, 279385), (142, 145595), (185, 111754), (355, 58238), (370, 55877), (710, 29119), (787, 26270), (1574, 13135), (2627, 7870), (3935, 5254)]