19702220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18587}}^1$

素因数の和:18649

約数の個数: 24

約数和(自身を含む): 42157584

約数和(自身を除く): 22455364

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18587, 37174, 74348, 92935, 185870, 371740, 985111, 1970222, 3940444, 4925555, 9851110, 19702220]

約数ペア:

[(1, 19702220), (2, 9851110), (4, 4925555), (5, 3940444), (10, 1970222), (20, 985111), (53, 371740), (106, 185870), (212, 92935), (265, 74348), (530, 37174), (1060, 18587)]