18674480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21221}}^1$

素因数の和:21245

約数の個数: 40

約数和(自身を含む): 47367504

約数和(自身を除く): 28693024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21221, 42442, 84884, 106105, 169768, 212210, 233431, 339536, 424420, 466862, 848840, 933724, 1167155, 1697680, 1867448, 2334310, 3734896, 4668620, 9337240, 18674480]

約数ペア:

[(1, 18674480), (2, 9337240), (4, 4668620), (5, 3734896), (8, 2334310), (10, 1867448), (11, 1697680), (16, 1167155), (20, 933724), (22, 848840), (40, 466862), (44, 424420), (55, 339536), (80, 233431), (88, 212210), (110, 169768), (176, 106105), (220, 84884), (440, 42442), (880, 21221)]