256760450

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{499}}^1$

素因数の和:803

約数の個数: 48

約数和(自身を含む): 492156000

約数和(自身を除く): 235395550

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 251, 410, 499, 502, 998, 1025, 1255, 2050, 2495, 2510, 4990, 6275, 10291, 12475, 12550, 20459, 20582, 24950, 40918, 51455, 102295, 102910, 125249, 204590, 250498, 257275, 511475, 514550, 626245, 1022950, 1252490, 3131225, 5135209, 6262450, 10270418, 25676045, 51352090, 128380225, 256760450]

約数ペア:

[(1, 256760450), (2, 128380225), (5, 51352090), (10, 25676045), (25, 10270418), (41, 6262450), (50, 5135209), (82, 3131225), (205, 1252490), (251, 1022950), (410, 626245), (499, 514550), (502, 511475), (998, 257275), (1025, 250498), (1255, 204590), (2050, 125249), (2495, 102910), (2510, 102295), (4990, 51455), (6275, 40918), (10291, 24950), (12475, 20582), (12550, 20459)]