20358350

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 41100048

約数和(自身を除く): 20741698

約数列:

[1, 2, 5, 10, 17, 25, 34, 43, 50, 85, 86, 170, 215, 425, 430, 557, 731, 850, 1075, 1114, 1462, 2150, 2785, 3655, 5570, 7310, 9469, 13925, 18275, 18938, 23951, 27850, 36550, 47345, 47902, 94690, 119755, 236725, 239510, 407167, 473450, 598775, 814334, 1197550, 2035835, 4071670, 10179175, 20358350]

約数ペア:

[(1, 20358350), (2, 10179175), (5, 4071670), (10, 2035835), (17, 1197550), (25, 814334), (34, 598775), (43, 473450), (50, 407167), (85, 239510), (86, 236725), (170, 119755), (215, 94690), (425, 47902), (430, 47345), (557, 36550), (731, 27850), (850, 23951), (1075, 18938), (1114, 18275), (1462, 13925), (2150, 9469), (2785, 7310), (3655, 5570)]