12748820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13009}}^1$

素因数の和:13032

約数の個数: 36

約数和(自身を含む): 31145940

約数和(自身を除く): 18397120

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 13009, 26018, 52036, 65045, 91063, 130090, 182126, 260180, 364252, 455315, 637441, 910630, 1274882, 1821260, 2549764, 3187205, 6374410, 12748820]

約数ペア:

[(1, 12748820), (2, 6374410), (4, 3187205), (5, 2549764), (7, 1821260), (10, 1274882), (14, 910630), (20, 637441), (28, 455315), (35, 364252), (49, 260180), (70, 182126), (98, 130090), (140, 91063), (196, 65045), (245, 52036), (490, 26018), (980, 13009)]