18426320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20939}}^1$

素因数の和:20963

約数の個数: 40

約数和(自身を含む): 46738080

約数和(自身を除く): 28311760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20939, 41878, 83756, 104695, 167512, 209390, 230329, 335024, 418780, 460658, 837560, 921316, 1151645, 1675120, 1842632, 2303290, 3685264, 4606580, 9213160, 18426320]

約数ペア:

[(1, 18426320), (2, 9213160), (4, 4606580), (5, 3685264), (8, 2303290), (10, 1842632), (11, 1675120), (16, 1151645), (20, 921316), (22, 837560), (40, 460658), (44, 418780), (55, 335024), (80, 230329), (88, 209390), (110, 167512), (176, 104695), (220, 83756), (440, 41878), (880, 20939)]