20661700

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1931}}^1$

素因数の和:2052

約数の個数: 36

約数和(自身を含む): 45278352

約数和(自身を除く): 24616652

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 1931, 2140, 2675, 3862, 5350, 7724, 9655, 10700, 19310, 38620, 48275, 96550, 193100, 206617, 413234, 826468, 1033085, 2066170, 4132340, 5165425, 10330850, 20661700]

約数ペア:

[(1, 20661700), (2, 10330850), (4, 5165425), (5, 4132340), (10, 2066170), (20, 1033085), (25, 826468), (50, 413234), (100, 206617), (107, 193100), (214, 96550), (428, 48275), (535, 38620), (1070, 19310), (1931, 10700), (2140, 9655), (2675, 7724), (3862, 5350)]