20754040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{379}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 48119400

約数和(自身を除く): 27365360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 379, 740, 758, 1369, 1480, 1516, 1895, 2738, 3032, 3790, 5476, 6845, 7580, 10952, 13690, 14023, 15160, 27380, 28046, 54760, 56092, 70115, 112184, 140230, 280460, 518851, 560920, 1037702, 2075404, 2594255, 4150808, 5188510, 10377020, 20754040]

約数ペア:

[(1, 20754040), (2, 10377020), (4, 5188510), (5, 4150808), (8, 2594255), (10, 2075404), (20, 1037702), (37, 560920), (40, 518851), (74, 280460), (148, 140230), (185, 112184), (296, 70115), (370, 56092), (379, 54760), (740, 28046), (758, 27380), (1369, 15160), (1480, 14023), (1516, 13690), (1895, 10952), (2738, 7580), (3032, 6845), (3790, 5476)]