28321475

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 44163840

約数和(自身を除く): 15842365

約数列:

[1, 5, 7, 13, 25, 35, 59, 65, 91, 175, 211, 295, 325, 413, 455, 767, 1055, 1475, 1477, 2065, 2275, 2743, 3835, 5275, 5369, 7385, 10325, 12449, 13715, 19175, 19201, 26845, 36925, 62245, 68575, 87143, 96005, 134225, 161837, 311225, 435715, 480025, 809185, 1132859, 2178575, 4045925, 5664295, 28321475]

約数ペア:

[(1, 28321475), (5, 5664295), (7, 4045925), (13, 2178575), (25, 1132859), (35, 809185), (59, 480025), (65, 435715), (91, 311225), (175, 161837), (211, 134225), (295, 96005), (325, 87143), (413, 68575), (455, 62245), (767, 36925), (1055, 26845), (1475, 19201), (1477, 19175), (2065, 13715), (2275, 12449), (2743, 10325), (3835, 7385), (5275, 5369)]