212937320

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{9323}}^1$

素因数の和:9905

約数の個数: 32

約数和(自身を含む): 479999520

約数和(自身を除く): 267062200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 2284, 2855, 4568, 5710, 9323, 11420, 18646, 22840, 37292, 46615, 74584, 93230, 186460, 372920, 5323433, 10646866, 21293732, 26617165, 42587464, 53234330, 106468660, 212937320]

約数ペア:

[(1, 212937320), (2, 106468660), (4, 53234330), (5, 42587464), (8, 26617165), (10, 21293732), (20, 10646866), (40, 5323433), (571, 372920), (1142, 186460), (2284, 93230), (2855, 74584), (4568, 46615), (5710, 37292), (9323, 22840), (11420, 18646)]