261686420

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{62011}}^1$

素因数の和:62231

約数の個数: 24

約数和(自身を含む): 552154848

約数和(自身を除く): 290468428

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 62011, 124022, 248044, 310055, 620110, 1240220, 13084321, 26168642, 52337284, 65421605, 130843210, 261686420]

約数ペア:

[(1, 261686420), (2, 130843210), (4, 65421605), (5, 52337284), (10, 26168642), (20, 13084321), (211, 1240220), (422, 620110), (844, 310055), (1055, 248044), (2110, 124022), (4220, 62011)]