64982780

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{4373}}^1$

素因数の和:5125

約数の個数: 24

約数和(自身を含む): 136678752

約数和(自身を除く): 71695972

約数列:

[1, 2, 4, 5, 10, 20, 743, 1486, 2972, 3715, 4373, 7430, 8746, 14860, 17492, 21865, 43730, 87460, 3249139, 6498278, 12996556, 16245695, 32491390, 64982780]

約数ペア:

[(1, 64982780), (2, 32491390), (4, 16245695), (5, 12996556), (10, 6498278), (20, 3249139), (743, 87460), (1486, 43730), (2972, 21865), (3715, 17492), (4373, 14860), (7430, 8746)]