99894020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1321}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 222096000

約数和(自身を除く): 122201980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1321, 1990, 2642, 3781, 3980, 5284, 6605, 7562, 13210, 15124, 18905, 25099, 26420, 37810, 50198, 75620, 100396, 125495, 250990, 262879, 501980, 525758, 1051516, 1314395, 2628790, 4994701, 5257580, 9989402, 19978804, 24973505, 49947010, 99894020]

約数ペア:

[(1, 99894020), (2, 49947010), (4, 24973505), (5, 19978804), (10, 9989402), (19, 5257580), (20, 4994701), (38, 2628790), (76, 1314395), (95, 1051516), (190, 525758), (199, 501980), (380, 262879), (398, 250990), (796, 125495), (995, 100396), (1321, 75620), (1990, 50198), (2642, 37810), (3781, 26420), (3980, 25099), (5284, 18905), (6605, 15124), (7562, 13210)]