80487860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{236729}}^1$

素因数の和:236755

約数の個数: 24

約数和(自身を含む): 178967880

約数和(自身を除く): 98480020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 236729, 473458, 946916, 1183645, 2367290, 4024393, 4734580, 8048786, 16097572, 20121965, 40243930, 80487860]

約数ペア:

[(1, 80487860), (2, 40243930), (4, 20121965), (5, 16097572), (10, 8048786), (17, 4734580), (20, 4024393), (34, 2367290), (68, 1183645), (85, 946916), (170, 473458), (340, 236729)]