261567290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{6577}}^1$

素因数の和:6722

約数の個数: 32

約数和(自身を含む): 487350864

約数和(自身を除く): 225783574

約数列:

[1, 2, 5, 10, 41, 82, 97, 194, 205, 410, 485, 970, 3977, 6577, 7954, 13154, 19885, 32885, 39770, 65770, 269657, 539314, 637969, 1275938, 1348285, 2696570, 3189845, 6379690, 26156729, 52313458, 130783645, 261567290]

約数ペア:

[(1, 261567290), (2, 130783645), (5, 52313458), (10, 26156729), (41, 6379690), (82, 3189845), (97, 2696570), (194, 1348285), (205, 1275938), (410, 637969), (485, 539314), (970, 269657), (3977, 65770), (6577, 39770), (7954, 32885), (13154, 19885)]