66481000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{3499}}^1$

素因数の和:3539

約数の個数: 64

約数和(自身を含む): 163800000

約数和(自身を除く): 97319000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1900, 2375, 3499, 3800, 4750, 6998, 9500, 13996, 17495, 19000, 27992, 34990, 66481, 69980, 87475, 132962, 139960, 174950, 265924, 332405, 349900, 437375, 531848, 664810, 699800, 874750, 1329620, 1662025, 1749500, 2659240, 3324050, 3499000, 6648100, 8310125, 13296200, 16620250, 33240500, 66481000]

約数ペア:

[(1, 66481000), (2, 33240500), (4, 16620250), (5, 13296200), (8, 8310125), (10, 6648100), (19, 3499000), (20, 3324050), (25, 2659240), (38, 1749500), (40, 1662025), (50, 1329620), (76, 874750), (95, 699800), (100, 664810), (125, 531848), (152, 437375), (190, 349900), (200, 332405), (250, 265924), (380, 174950), (475, 139960), (500, 132962), (760, 87475), (950, 69980), (1000, 66481), (1900, 34990), (2375, 27992), (3499, 19000), (3800, 17495), (4750, 13996), (6998, 9500)]