20054600

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{509}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 46955700

約数和(自身を除く): 26901100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 509, 788, 985, 1018, 1576, 1970, 2036, 2545, 3940, 4072, 4925, 5090, 7880, 9850, 10180, 12725, 19700, 20360, 25450, 39400, 50900, 100273, 101800, 200546, 401092, 501365, 802184, 1002730, 2005460, 2506825, 4010920, 5013650, 10027300, 20054600]

約数ペア:

[(1, 20054600), (2, 10027300), (4, 5013650), (5, 4010920), (8, 2506825), (10, 2005460), (20, 1002730), (25, 802184), (40, 501365), (50, 401092), (100, 200546), (197, 101800), (200, 100273), (394, 50900), (509, 39400), (788, 25450), (985, 20360), (1018, 19700), (1576, 12725), (1970, 10180), (2036, 9850), (2545, 7880), (3940, 5090), (4072, 4925)]