389884540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{526871}}^1$

素因数の和:526917

約数の個数: 24

約数和(自身を含む): 840887712

約数和(自身を除く): 451003172

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 526871, 1053742, 2107484, 2634355, 5268710, 10537420, 19494227, 38988454, 77976908, 97471135, 194942270, 389884540]

約数ペア:

[(1, 389884540), (2, 194942270), (4, 97471135), (5, 77976908), (10, 38988454), (20, 19494227), (37, 10537420), (74, 5268710), (148, 2634355), (185, 2107484), (370, 1053742), (740, 526871)]