64644680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16661}}^1$

素因数の和:16769

約数の個数: 32

約数和(自身を含む): 146958840

約数和(自身を除く): 82314160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 16661, 33322, 66644, 83305, 133288, 166610, 333220, 666440, 1616117, 3232234, 6464468, 8080585, 12928936, 16161170, 32322340, 64644680]

約数ペア:

[(1, 64644680), (2, 32322340), (4, 16161170), (5, 12928936), (8, 8080585), (10, 6464468), (20, 3232234), (40, 1616117), (97, 666440), (194, 333220), (388, 166610), (485, 133288), (776, 83305), (970, 66644), (1940, 33322), (3880, 16661)]