155570440

素因数分解:

$2^3\times 5^1\times {\mathrm{3889261}}^1$

素因数の和:3889272

約数の個数: 16

約数和(自身を含む): 350033580

約数和(自身を除く): 194463140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3889261, 7778522, 15557044, 19446305, 31114088, 38892610, 77785220, 155570440]

約数ペア:

[(1, 155570440), (2, 77785220), (4, 38892610), (5, 31114088), (8, 19446305), (10, 15557044), (20, 7778522), (40, 3889261)]