398677825

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5653}}^1$

素因数の和:5714

約数の個数: 48

約数和(自身を含む): 628182016

約数和(自身を除く): 229504191

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 91, 155, 175, 217, 325, 403, 455, 775, 1085, 2015, 2275, 2821, 5425, 5653, 10075, 14105, 28265, 39571, 70525, 73489, 141325, 175243, 197855, 367445, 514423, 876215, 989275, 1226701, 1837225, 2278159, 2572115, 4381075, 6133505, 11390795, 12860575, 15947113, 30667525, 56953975, 79735565, 398677825]

約数ペア:

[(1, 398677825), (5, 79735565), (7, 56953975), (13, 30667525), (25, 15947113), (31, 12860575), (35, 11390795), (65, 6133505), (91, 4381075), (155, 2572115), (175, 2278159), (217, 1837225), (325, 1226701), (403, 989275), (455, 876215), (775, 514423), (1085, 367445), (2015, 197855), (2275, 175243), (2821, 141325), (5425, 73489), (5653, 70525), (10075, 39571), (14105, 28265)]