51590800

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1277}}^1$

素因数の和:1396

約数の個数: 60

約数和(自身を含む): 125272116

約数和(自身を除く): 73681316

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1277, 1616, 2020, 2525, 2554, 4040, 5050, 5108, 6385, 8080, 10100, 10216, 12770, 20200, 20432, 25540, 31925, 40400, 51080, 63850, 102160, 127700, 128977, 255400, 257954, 510800, 515908, 644885, 1031816, 1289770, 2063632, 2579540, 3224425, 5159080, 6448850, 10318160, 12897700, 25795400, 51590800]

約数ペア:

[(1, 51590800), (2, 25795400), (4, 12897700), (5, 10318160), (8, 6448850), (10, 5159080), (16, 3224425), (20, 2579540), (25, 2063632), (40, 1289770), (50, 1031816), (80, 644885), (100, 515908), (101, 510800), (200, 257954), (202, 255400), (400, 128977), (404, 127700), (505, 102160), (808, 63850), (1010, 51080), (1277, 40400), (1616, 31925), (2020, 25540), (2525, 20432), (2554, 20200), (4040, 12770), (5050, 10216), (5108, 10100), (6385, 8080)]