64487540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2557}}^1$

素因数の和:2676

約数の個数: 48

約数和(自身を含む): 147402192

約数和(自身を除く): 82914652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 2557, 5044, 5114, 6305, 10228, 12610, 12785, 25220, 25570, 33241, 51140, 66482, 132964, 166205, 248029, 332410, 496058, 664820, 992116, 1240145, 2480290, 3224377, 4960580, 6448754, 12897508, 16121885, 32243770, 64487540]

約数ペア:

[(1, 64487540), (2, 32243770), (4, 16121885), (5, 12897508), (10, 6448754), (13, 4960580), (20, 3224377), (26, 2480290), (52, 1240145), (65, 992116), (97, 664820), (130, 496058), (194, 332410), (260, 248029), (388, 166205), (485, 132964), (970, 66482), (1261, 51140), (1940, 33241), (2522, 25570), (2557, 25220), (5044, 12785), (5114, 12610), (6305, 10228)]