78821915

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{1229}}^1$

素因数の和:1462

約数の個数: 16

約数和(自身を含む): 96353280

約数和(自身を除く): 17531365

約数列:

[1, 5, 101, 127, 505, 635, 1229, 6145, 12827, 64135, 124129, 156083, 620645, 780415, 15764383, 78821915]

約数ペア:

[(1, 78821915), (5, 15764383), (101, 780415), (127, 620645), (505, 156083), (635, 124129), (1229, 64135), (6145, 12827)]