9790280

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{787}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 22127040

約数和(自身を除く): 12336760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 787, 1244, 1555, 1574, 2488, 3110, 3148, 3935, 6220, 6296, 7870, 12440, 15740, 31480, 244757, 489514, 979028, 1223785, 1958056, 2447570, 4895140, 9790280]

約数ペア:

[(1, 9790280), (2, 4895140), (4, 2447570), (5, 1958056), (8, 1223785), (10, 979028), (20, 489514), (40, 244757), (311, 31480), (622, 15740), (787, 12440), (1244, 7870), (1555, 6296), (1574, 6220), (2488, 3935), (3110, 3148)]