81661100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^2\times {\mathrm{971}}^1$

素因数の和:1043

約数の個数: 54

約数和(自身を含む): 183714804

約数和(自身を除く): 102053704

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 841, 971, 1450, 1682, 1942, 2900, 3364, 3884, 4205, 4855, 8410, 9710, 16820, 19420, 21025, 24275, 28159, 42050, 48550, 56318, 84100, 97100, 112636, 140795, 281590, 563180, 703975, 816611, 1407950, 1633222, 2815900, 3266444, 4083055, 8166110, 16332220, 20415275, 40830550, 81661100]

約数ペア:

[(1, 81661100), (2, 40830550), (4, 20415275), (5, 16332220), (10, 8166110), (20, 4083055), (25, 3266444), (29, 2815900), (50, 1633222), (58, 1407950), (100, 816611), (116, 703975), (145, 563180), (290, 281590), (580, 140795), (725, 112636), (841, 97100), (971, 84100), (1450, 56318), (1682, 48550), (1942, 42050), (2900, 28159), (3364, 24275), (3884, 21025), (4205, 19420), (4855, 16820), (8410, 9710)]