20778270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1051}}^1$

素因数の和:1720

約数の個数: 32

約数和(自身を含む): 49991040

約数和(自身を除く): 29212770

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 659, 1051, 1318, 1977, 2102, 3153, 3295, 3954, 5255, 6306, 6590, 9885, 10510, 15765, 19770, 31530, 692609, 1385218, 2077827, 3463045, 4155654, 6926090, 10389135, 20778270]

約数ペア:

[(1, 20778270), (2, 10389135), (3, 6926090), (5, 4155654), (6, 3463045), (10, 2077827), (15, 1385218), (30, 692609), (659, 31530), (1051, 19770), (1318, 15765), (1977, 10510), (2102, 9885), (3153, 6590), (3295, 6306), (3954, 5255)]