9187900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{661}}^1$

素因数の和:814

約数の個数: 36

約数和(自身を含む): 20111560

約数和(自身を除く): 10923660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 661, 695, 1322, 1390, 2644, 2780, 3305, 3475, 6610, 6950, 13220, 13900, 16525, 33050, 66100, 91879, 183758, 367516, 459395, 918790, 1837580, 2296975, 4593950, 9187900]

約数ペア:

[(1, 9187900), (2, 4593950), (4, 2296975), (5, 1837580), (10, 918790), (20, 459395), (25, 367516), (50, 183758), (100, 91879), (139, 66100), (278, 33050), (556, 16525), (661, 13900), (695, 13220), (1322, 6950), (1390, 6610), (2644, 3475), (2780, 3305)]