64804900

素因数分解:

$2^2\times 5^2\times {\mathrm{241}}^1\times {\mathrm{2689}}^1$

素因数の和:2944

約数の個数: 36

約数和(自身を含む): 141262660

約数和(自身を除く): 76457760

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 241, 482, 964, 1205, 2410, 2689, 4820, 5378, 6025, 10756, 12050, 13445, 24100, 26890, 53780, 67225, 134450, 268900, 648049, 1296098, 2592196, 3240245, 6480490, 12960980, 16201225, 32402450, 64804900]

約数ペア:

[(1, 64804900), (2, 32402450), (4, 16201225), (5, 12960980), (10, 6480490), (20, 3240245), (25, 2592196), (50, 1296098), (100, 648049), (241, 268900), (482, 134450), (964, 67225), (1205, 53780), (2410, 26890), (2689, 24100), (4820, 13445), (5378, 12050), (6025, 10756)]