9938840

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1031}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 22476960

約数和(自身を除く): 12538120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1031, 1205, 1928, 2062, 2410, 4124, 4820, 5155, 8248, 9640, 10310, 20620, 41240, 248471, 496942, 993884, 1242355, 1987768, 2484710, 4969420, 9938840]

約数ペア:

[(1, 9938840), (2, 4969420), (4, 2484710), (5, 1987768), (8, 1242355), (10, 993884), (20, 496942), (40, 248471), (241, 41240), (482, 20620), (964, 10310), (1031, 9640), (1205, 8248), (1928, 5155), (2062, 4820), (2410, 4124)]