42440380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26861}}^1$

素因数の和:26949

約数の個数: 24

約数和(自身を含む): 90256320

約数和(自身を除く): 47815940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 26861, 53722, 107444, 134305, 268610, 537220, 2122019, 4244038, 8488076, 10610095, 21220190, 42440380]

約数ペア:

[(1, 42440380), (2, 21220190), (4, 10610095), (5, 8488076), (10, 4244038), (20, 2122019), (79, 537220), (158, 268610), (316, 134305), (395, 107444), (790, 53722), (1580, 26861)]