56777720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13781}}^1$

素因数の和:13895

約数の個数: 32

約数和(自身を含む): 128999520

約数和(自身を除く): 72221800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 13781, 27562, 55124, 68905, 110248, 137810, 275620, 551240, 1419443, 2838886, 5677772, 7097215, 11355544, 14194430, 28388860, 56777720]

約数ペア:

[(1, 56777720), (2, 28388860), (4, 14194430), (5, 11355544), (8, 7097215), (10, 5677772), (20, 2838886), (40, 1419443), (103, 551240), (206, 275620), (412, 137810), (515, 110248), (824, 68905), (1030, 55124), (2060, 27562), (4120, 13781)]