2008648100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{647951}}^1$

素因数の和:647996

約数の個数: 36

約数和(自身を含む): 4499378688

約数和(自身を除く): 2490730588

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 647951, 1295902, 2591804, 3239755, 6479510, 12959020, 16198775, 20086481, 32397550, 40172962, 64795100, 80345924, 100432405, 200864810, 401729620, 502162025, 1004324050, 2008648100]

約数ペア:

[(1, 2008648100), (2, 1004324050), (4, 502162025), (5, 401729620), (10, 200864810), (20, 100432405), (25, 80345924), (31, 64795100), (50, 40172962), (62, 32397550), (100, 20086481), (124, 16198775), (155, 12959020), (310, 6479510), (620, 3239755), (775, 2591804), (1550, 1295902), (3100, 647951)]