20305844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4943}}^1$

素因数の和:5039

約数の個数: 24

約数和(自身を含む): 38760960

約数和(自身を除く): 18455116

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4943, 9886, 19772, 64259, 128518, 257036, 390497, 780994, 1561988, 5076461, 10152922, 20305844]

約数ペア:

[(1, 20305844), (2, 10152922), (4, 5076461), (13, 1561988), (26, 780994), (52, 390497), (79, 257036), (158, 128518), (316, 64259), (1027, 19772), (2054, 9886), (4108, 4943)]