20702090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2591}}^1$

素因数の和:2662

約数の個数: 32

約数和(自身を含む): 40310784

約数和(自身を除く): 19608694

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2591, 3995, 5182, 7990, 12955, 25910, 44047, 88094, 121777, 220235, 243554, 440470, 608885, 1217770, 2070209, 4140418, 10351045, 20702090]

約数ペア:

[(1, 20702090), (2, 10351045), (5, 4140418), (10, 2070209), (17, 1217770), (34, 608885), (47, 440470), (85, 243554), (94, 220235), (170, 121777), (235, 88094), (470, 44047), (799, 25910), (1598, 12955), (2591, 7990), (3995, 5182)]