20688270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29983}}^1$

素因数の和:30016

約数の個数: 32

約数和(自身を含む): 51812352

約数和(自身を除く): 31124082

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 29983, 59966, 89949, 149915, 179898, 299830, 449745, 689609, 899490, 1379218, 2068827, 3448045, 4137654, 6896090, 10344135, 20688270]

約数ペア:

[(1, 20688270), (2, 10344135), (3, 6896090), (5, 4137654), (6, 3448045), (10, 2068827), (15, 1379218), (23, 899490), (30, 689609), (46, 449745), (69, 299830), (115, 179898), (138, 149915), (230, 89949), (345, 59966), (690, 29983)]