3638420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1669}}^1$

素因数の和:1787

約数の個数: 24

約数和(自身を含む): 7715400

約数和(自身を除く): 4076980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1669, 2180, 3338, 6676, 8345, 16690, 33380, 181921, 363842, 727684, 909605, 1819210, 3638420]

約数ペア:

[(1, 3638420), (2, 1819210), (4, 909605), (5, 727684), (10, 363842), (20, 181921), (109, 33380), (218, 16690), (436, 8345), (545, 6676), (1090, 3338), (1669, 2180)]