78877720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{15053}}^1$

素因数の和:15195

約数の個数: 32

約数和(自身を含む): 178841520

約数和(自身を除く): 99963800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 15053, 30106, 60212, 75265, 120424, 150530, 301060, 602120, 1971943, 3943886, 7887772, 9859715, 15775544, 19719430, 39438860, 78877720]

約数ペア:

[(1, 78877720), (2, 39438860), (4, 19719430), (5, 15775544), (8, 9859715), (10, 7887772), (20, 3943886), (40, 1971943), (131, 602120), (262, 301060), (524, 150530), (655, 120424), (1048, 75265), (1310, 60212), (2620, 30106), (5240, 15053)]