28903575

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 50309280

約数和(自身を除く): 21405705

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 97, 137, 145, 291, 411, 435, 485, 685, 725, 1455, 2055, 2175, 2425, 2813, 3425, 3973, 7275, 8439, 10275, 11919, 13289, 14065, 19865, 39867, 42195, 59595, 66445, 70325, 99325, 199335, 210975, 297975, 332225, 385381, 996675, 1156143, 1926905, 5780715, 9634525, 28903575]

約数ペア:

[(1, 28903575), (3, 9634525), (5, 5780715), (15, 1926905), (25, 1156143), (29, 996675), (75, 385381), (87, 332225), (97, 297975), (137, 210975), (145, 199335), (291, 99325), (411, 70325), (435, 66445), (485, 59595), (685, 42195), (725, 39867), (1455, 19865), (2055, 14065), (2175, 13289), (2425, 11919), (2813, 10275), (3425, 8439), (3973, 7275)]