28486675

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 42854400

約数和(自身を除く): 14367725

約数列:

[1, 5, 7, 25, 31, 35, 59, 89, 155, 175, 217, 295, 413, 445, 623, 775, 1085, 1475, 1829, 2065, 2225, 2759, 3115, 5251, 5425, 9145, 10325, 12803, 13795, 15575, 19313, 26255, 36757, 45725, 64015, 68975, 96565, 131275, 162781, 183785, 320075, 482825, 813905, 918925, 1139467, 4069525, 5697335, 28486675]

約数ペア:

[(1, 28486675), (5, 5697335), (7, 4069525), (25, 1139467), (31, 918925), (35, 813905), (59, 482825), (89, 320075), (155, 183785), (175, 162781), (217, 131275), (295, 96565), (413, 68975), (445, 64015), (623, 45725), (775, 36757), (1085, 26255), (1475, 19313), (1829, 15575), (2065, 13795), (2225, 12803), (2759, 10325), (3115, 9145), (5251, 5425)]