20091122

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{1259}}^1$

素因数の和:1441

約数の個数: 16

約数和(自身を含む): 30844800

約数和(自身を除く): 10753678

約数列:

[1, 2, 79, 101, 158, 202, 1259, 2518, 7979, 15958, 99461, 127159, 198922, 254318, 10045561, 20091122]

約数ペア:

[(1, 20091122), (2, 10045561), (79, 254318), (101, 198922), (158, 127159), (202, 99461), (1259, 15958), (2518, 7979)]