1897560875

素因数分解:

$5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{727}}^1$

素因数の和:925

約数の個数: 64

約数和(自身を含む): 2870999040

約数和(自身を除く): 973438165

約数列:

[1, 5, 7, 19, 25, 35, 95, 125, 133, 157, 175, 475, 665, 727, 785, 875, 1099, 2375, 2983, 3325, 3635, 3925, 5089, 5495, 13813, 14915, 16625, 18175, 19625, 20881, 25445, 27475, 69065, 74575, 90875, 96691, 104405, 114139, 127225, 137375, 345325, 372875, 483455, 522025, 570695, 636125, 798973, 1726625, 2168641, 2417275, 2610125, 2853475, 3994865, 10843205, 12086375, 14267375, 15180487, 19974325, 54216025, 75902435, 99871625, 271080125, 379512175, 1897560875]

約数ペア:

[(1, 1897560875), (5, 379512175), (7, 271080125), (19, 99871625), (25, 75902435), (35, 54216025), (95, 19974325), (125, 15180487), (133, 14267375), (157, 12086375), (175, 10843205), (475, 3994865), (665, 2853475), (727, 2610125), (785, 2417275), (875, 2168641), (1099, 1726625), (2375, 798973), (2983, 636125), (3325, 570695), (3635, 522025), (3925, 483455), (5089, 372875), (5495, 345325), (13813, 137375), (14915, 127225), (16625, 114139), (18175, 104405), (19625, 96691), (20881, 90875), (25445, 74575), (27475, 69065)]