278804528

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{1999}}^1$

素因数の和:2409

約数の個数: 40

約数和(自身を含む): 565440000

約数和(自身を除く): 286635472

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 379, 758, 1516, 1999, 3032, 3998, 6064, 7996, 8717, 15992, 17434, 31984, 34868, 45977, 69736, 91954, 139472, 183908, 367816, 735632, 757621, 1515242, 3030484, 6060968, 12121936, 17425283, 34850566, 69701132, 139402264, 278804528]

約数ペア:

[(1, 278804528), (2, 139402264), (4, 69701132), (8, 34850566), (16, 17425283), (23, 12121936), (46, 6060968), (92, 3030484), (184, 1515242), (368, 757621), (379, 735632), (758, 367816), (1516, 183908), (1999, 139472), (3032, 91954), (3998, 69736), (6064, 45977), (7996, 34868), (8717, 31984), (15992, 17434)]