20649770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{433}}^1$

素因数の和:710

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 18722710

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 251, 433, 502, 866, 1255, 2165, 2510, 4330, 4769, 8227, 9538, 16454, 23845, 41135, 47690, 82270, 108683, 217366, 543415, 1086830, 2064977, 4129954, 10324885, 20649770]

約数ペア:

[(1, 20649770), (2, 10324885), (5, 4129954), (10, 2064977), (19, 1086830), (38, 543415), (95, 217366), (190, 108683), (251, 82270), (433, 47690), (502, 41135), (866, 23845), (1255, 16454), (2165, 9538), (2510, 8227), (4330, 4769)]