20370800

素因数分解:

$2^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:546

約数の個数: 60

約数和(自身を含む): 49449216

約数和(自身を除く): 29078416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 127, 200, 254, 400, 401, 508, 635, 802, 1016, 1270, 1604, 2005, 2032, 2540, 3175, 3208, 4010, 5080, 6350, 6416, 8020, 10025, 10160, 12700, 16040, 20050, 25400, 32080, 40100, 50800, 50927, 80200, 101854, 160400, 203708, 254635, 407416, 509270, 814832, 1018540, 1273175, 2037080, 2546350, 4074160, 5092700, 10185400, 20370800]

約数ペア:

[(1, 20370800), (2, 10185400), (4, 5092700), (5, 4074160), (8, 2546350), (10, 2037080), (16, 1273175), (20, 1018540), (25, 814832), (40, 509270), (50, 407416), (80, 254635), (100, 203708), (127, 160400), (200, 101854), (254, 80200), (400, 50927), (401, 50800), (508, 40100), (635, 32080), (802, 25400), (1016, 20050), (1270, 16040), (1604, 12700), (2005, 10160), (2032, 10025), (2540, 8020), (3175, 6416), (3208, 6350), (4010, 5080)]