199933280

素因数分解:

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

素因数の和:2271

約数の個数: 48

約数和(自身を含む): 473195520

約数和(自身を除く): 273262240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 977, 1279, 1954, 2558, 3908, 4885, 5116, 6395, 7816, 9770, 10232, 12790, 15632, 19540, 20464, 25580, 31264, 39080, 40928, 51160, 78160, 102320, 156320, 204640, 1249583, 2499166, 4998332, 6247915, 9996664, 12495830, 19993328, 24991660, 39986656, 49983320, 99966640, 199933280]

約数ペア:

[(1, 199933280), (2, 99966640), (4, 49983320), (5, 39986656), (8, 24991660), (10, 19993328), (16, 12495830), (20, 9996664), (32, 6247915), (40, 4998332), (80, 2499166), (160, 1249583), (977, 204640), (1279, 156320), (1954, 102320), (2558, 78160), (3908, 51160), (4885, 40928), (5116, 39080), (6395, 31264), (7816, 25580), (9770, 20464), (10232, 19540), (12790, 15632)]