71256860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{209579}}^1$

素因数の和:209605

約数の個数: 24

約数和(自身を含む): 158442480

約数和(自身を除く): 87185620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 209579, 419158, 838316, 1047895, 2095790, 3562843, 4191580, 7125686, 14251372, 17814215, 35628430, 71256860]

約数ペア:

[(1, 71256860), (2, 35628430), (4, 17814215), (5, 14251372), (10, 7125686), (17, 4191580), (20, 3562843), (34, 2095790), (68, 1047895), (85, 838316), (170, 419158), (340, 209579)]