12720590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{74827}}^1$

素因数の和:74851

約数の個数: 16

約数和(自身を含む): 24244272

約数和(自身を除く): 11523682

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 74827, 149654, 374135, 748270, 1272059, 2544118, 6360295, 12720590]

約数ペア:

[(1, 12720590), (2, 6360295), (5, 2544118), (10, 1272059), (17, 748270), (34, 374135), (85, 149654), (170, 74827)]