12668500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1981

約数の個数: 48

約数和(自身を含む): 29811600

約数和(自身を除く): 17143100

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 1949, 3250, 3898, 6500, 7796, 9745, 19490, 25337, 38980, 48725, 50674, 97450, 101348, 126685, 194900, 243625, 253370, 487250, 506740, 633425, 974500, 1266850, 2533700, 3167125, 6334250, 12668500]

約数ペア:

[(1, 12668500), (2, 6334250), (4, 3167125), (5, 2533700), (10, 1266850), (13, 974500), (20, 633425), (25, 506740), (26, 487250), (50, 253370), (52, 243625), (65, 194900), (100, 126685), (125, 101348), (130, 97450), (250, 50674), (260, 48725), (325, 38980), (500, 25337), (650, 19490), (1300, 9745), (1625, 7796), (1949, 6500), (3250, 3898)]