9997240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22721}}^1$

素因数の和:22743

約数の個数: 32

約数和(自身を含む): 24539760

約数和(自身を除く): 14542520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 22721, 45442, 90884, 113605, 181768, 227210, 249931, 454420, 499862, 908840, 999724, 1249655, 1999448, 2499310, 4998620, 9997240]

約数ペア:

[(1, 9997240), (2, 4998620), (4, 2499310), (5, 1999448), (8, 1249655), (10, 999724), (11, 908840), (20, 499862), (22, 454420), (40, 249931), (44, 227210), (55, 181768), (88, 113605), (110, 90884), (220, 45442), (440, 22721)]