99966640

素因数分解:

$2^4\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1279}}^1$

素因数の和:2269

約数の個数: 40

約数和(自身を含む): 232842240

約数和(自身を除く): 132875600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 977, 1279, 1954, 2558, 3908, 4885, 5116, 6395, 7816, 9770, 10232, 12790, 15632, 19540, 20464, 25580, 39080, 51160, 78160, 102320, 1249583, 2499166, 4998332, 6247915, 9996664, 12495830, 19993328, 24991660, 49983320, 99966640]

約数ペア:

[(1, 99966640), (2, 49983320), (4, 24991660), (5, 19993328), (8, 12495830), (10, 9996664), (16, 6247915), (20, 4998332), (40, 2499166), (80, 1249583), (977, 102320), (1279, 78160), (1954, 51160), (2558, 39080), (3908, 25580), (4885, 20464), (5116, 19540), (6395, 15632), (7816, 12790), (9770, 10232)]