81484900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1973}}^1$

素因数の和:2053

約数の個数: 72

約数和(自身を含む): 205611840

約数和(自身を除く): 124126940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 59, 70, 100, 118, 140, 175, 236, 295, 350, 413, 590, 700, 826, 1180, 1475, 1652, 1973, 2065, 2950, 3946, 4130, 5900, 7892, 8260, 9865, 10325, 13811, 19730, 20650, 27622, 39460, 41300, 49325, 55244, 69055, 98650, 116407, 138110, 197300, 232814, 276220, 345275, 465628, 582035, 690550, 814849, 1164070, 1381100, 1629698, 2328140, 2910175, 3259396, 4074245, 5820350, 8148490, 11640700, 16296980, 20371225, 40742450, 81484900]

約数ペア:

[(1, 81484900), (2, 40742450), (4, 20371225), (5, 16296980), (7, 11640700), (10, 8148490), (14, 5820350), (20, 4074245), (25, 3259396), (28, 2910175), (35, 2328140), (50, 1629698), (59, 1381100), (70, 1164070), (100, 814849), (118, 690550), (140, 582035), (175, 465628), (236, 345275), (295, 276220), (350, 232814), (413, 197300), (590, 138110), (700, 116407), (826, 98650), (1180, 69055), (1475, 55244), (1652, 49325), (1973, 41300), (2065, 39460), (2950, 27622), (3946, 20650), (4130, 19730), (5900, 13811), (7892, 10325), (8260, 9865)]