28781768

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 55080000

約数和(自身を除く): 26298232

約数列:

[1, 2, 4, 8, 101, 179, 199, 202, 358, 398, 404, 716, 796, 808, 1432, 1592, 18079, 20099, 35621, 36158, 40198, 71242, 72316, 80396, 142484, 144632, 160792, 284968, 3597721, 7195442, 14390884, 28781768]

約数ペア:

[(1, 28781768), (2, 14390884), (4, 7195442), (8, 3597721), (101, 284968), (179, 160792), (199, 144632), (202, 142484), (358, 80396), (398, 72316), (404, 71242), (716, 40198), (796, 36158), (808, 35621), (1432, 20099), (1592, 18079)]