25471480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 34403720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 59, 86, 118, 172, 215, 236, 251, 295, 344, 430, 472, 502, 590, 860, 1004, 1180, 1255, 1720, 2008, 2360, 2510, 2537, 5020, 5074, 10040, 10148, 10793, 12685, 14809, 20296, 21586, 25370, 29618, 43172, 50740, 53965, 59236, 74045, 86344, 101480, 107930, 118472, 148090, 215860, 296180, 431720, 592360, 636787, 1273574, 2547148, 3183935, 5094296, 6367870, 12735740, 25471480]

約数ペア:

[(1, 25471480), (2, 12735740), (4, 6367870), (5, 5094296), (8, 3183935), (10, 2547148), (20, 1273574), (40, 636787), (43, 592360), (59, 431720), (86, 296180), (118, 215860), (172, 148090), (215, 118472), (236, 107930), (251, 101480), (295, 86344), (344, 74045), (430, 59236), (472, 53965), (502, 50740), (590, 43172), (860, 29618), (1004, 25370), (1180, 21586), (1255, 20296), (1720, 14809), (2008, 12685), (2360, 10793), (2510, 10148), (2537, 10040), (5020, 5074)]