130478728

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 252000000

約数和(自身を除く): 121521272

約数列:

[1, 2, 4, 8, 41, 82, 164, 199, 328, 398, 796, 1592, 1999, 3998, 7996, 8159, 15992, 16318, 32636, 65272, 81959, 163918, 327836, 397801, 655672, 795602, 1591204, 3182408, 16309841, 32619682, 65239364, 130478728]

約数ペア:

[(1, 130478728), (2, 65239364), (4, 32619682), (8, 16309841), (41, 3182408), (82, 1591204), (164, 795602), (199, 655672), (328, 397801), (398, 327836), (796, 163918), (1592, 81959), (1999, 65272), (3998, 32636), (7996, 16318), (8159, 15992)]