51560780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{277}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 111809376

約数和(自身を除く): 60248596

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 227, 277, 410, 454, 554, 820, 908, 1108, 1135, 1385, 2270, 2770, 4540, 5540, 9307, 11357, 18614, 22714, 37228, 45428, 46535, 56785, 62879, 93070, 113570, 125758, 186140, 227140, 251516, 314395, 628790, 1257580, 2578039, 5156078, 10312156, 12890195, 25780390, 51560780]

約数ペア:

[(1, 51560780), (2, 25780390), (4, 12890195), (5, 10312156), (10, 5156078), (20, 2578039), (41, 1257580), (82, 628790), (164, 314395), (205, 251516), (227, 227140), (277, 186140), (410, 125758), (454, 113570), (554, 93070), (820, 62879), (908, 56785), (1108, 46535), (1135, 45428), (1385, 37228), (2270, 22714), (2770, 18614), (4540, 11357), (5540, 9307)]