78442928

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{11987}}^1$

素因数の和:12404

約数の個数: 20

約数和(自身を含む): 152367480

約数和(自身を除く): 73924552

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 11987, 23974, 47948, 95896, 191792, 4902683, 9805366, 19610732, 39221464, 78442928]

約数ペア:

[(1, 78442928), (2, 39221464), (4, 19610732), (8, 9805366), (16, 4902683), (409, 191792), (818, 95896), (1636, 47948), (3272, 23974), (6544, 11987)]