2020105160

素因数分解:

$2^3\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{39119}}^1$

素因数の和:40421

約数の個数: 32

約数和(自身を含む): 4548873600

約数和(自身を除く): 2528768440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1291, 2582, 5164, 6455, 10328, 12910, 25820, 39119, 51640, 78238, 156476, 195595, 312952, 391190, 782380, 1564760, 50502629, 101005258, 202010516, 252513145, 404021032, 505026290, 1010052580, 2020105160]

約数ペア:

[(1, 2020105160), (2, 1010052580), (4, 505026290), (5, 404021032), (8, 252513145), (10, 202010516), (20, 101005258), (40, 50502629), (1291, 1564760), (2582, 782380), (5164, 391190), (6455, 312952), (10328, 195595), (12910, 156476), (25820, 78238), (39119, 51640)]