64718575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 90396000

約数和(自身を除く): 25677425

約数列:

[1, 5, 17, 25, 29, 59, 85, 89, 145, 295, 425, 445, 493, 725, 1003, 1475, 1513, 1711, 2225, 2465, 2581, 5015, 5251, 7565, 8555, 12325, 12905, 25075, 26255, 29087, 37825, 42775, 43877, 64525, 89267, 131275, 145435, 152279, 219385, 446335, 727175, 761395, 1096925, 2231675, 2588743, 3806975, 12943715, 64718575]

約数ペア:

[(1, 64718575), (5, 12943715), (17, 3806975), (25, 2588743), (29, 2231675), (59, 1096925), (85, 761395), (89, 727175), (145, 446335), (295, 219385), (425, 152279), (445, 145435), (493, 131275), (725, 89267), (1003, 64525), (1475, 43877), (1513, 42775), (1711, 37825), (2225, 29087), (2465, 26255), (2581, 25075), (5015, 12905), (5251, 12325), (7565, 8555)]