19779220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24121}}^1$

素因数の和:24171

約数の個数: 24

約数和(自身を含む): 42551208

約数和(自身を除く): 22771988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24121, 48242, 96484, 120605, 241210, 482420, 988961, 1977922, 3955844, 4944805, 9889610, 19779220]

約数ペア:

[(1, 19779220), (2, 9889610), (4, 4944805), (5, 3955844), (10, 1977922), (20, 988961), (41, 482420), (82, 241210), (164, 120605), (205, 96484), (410, 48242), (820, 24121)]