4053380

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 8550360

約数和(自身を除く): 4496980

約数列:

[1, 2, 4, 5, 10, 20, 389, 521, 778, 1042, 1556, 1945, 2084, 2605, 3890, 5210, 7780, 10420, 202669, 405338, 810676, 1013345, 2026690, 4053380]

約数ペア:

[(1, 4053380), (2, 2026690), (4, 1013345), (5, 810676), (10, 405338), (20, 202669), (389, 10420), (521, 7780), (778, 5210), (1042, 3890), (1556, 2605), (1945, 2084)]