165739480

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{78179}}^1$

素因数の和:78243

約数の個数: 32

約数和(自身を含む): 379954800

約数和(自身を除く): 214215320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 78179, 156358, 312716, 390895, 625432, 781790, 1563580, 3127160, 4143487, 8286974, 16573948, 20717435, 33147896, 41434870, 82869740, 165739480]

約数ペア:

[(1, 165739480), (2, 82869740), (4, 41434870), (5, 33147896), (8, 20717435), (10, 16573948), (20, 8286974), (40, 4143487), (53, 3127160), (106, 1563580), (212, 781790), (265, 625432), (424, 390895), (530, 312716), (1060, 156358), (2120, 78179)]