20281135

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3889}}^1$

素因数の和:4050

約数の個数: 16

約数和(自身を含む): 28008000

約数和(自身を除く): 7726865

約数列:

[1, 5, 7, 35, 149, 745, 1043, 3889, 5215, 19445, 27223, 136115, 579461, 2897305, 4056227, 20281135]

約数ペア:

[(1, 20281135), (5, 4056227), (7, 2897305), (35, 579461), (149, 136115), (745, 27223), (1043, 19445), (3889, 5215)]