31671250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1984

約数の個数: 40

約数和(自身を含む): 63963900

約数和(自身を除く): 32292650

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 1949, 3250, 3898, 8125, 9745, 16250, 19490, 25337, 48725, 50674, 97450, 126685, 243625, 253370, 487250, 633425, 1218125, 1266850, 2436250, 3167125, 6334250, 15835625, 31671250]

約数ペア:

[(1, 31671250), (2, 15835625), (5, 6334250), (10, 3167125), (13, 2436250), (25, 1266850), (26, 1218125), (50, 633425), (65, 487250), (125, 253370), (130, 243625), (250, 126685), (325, 97450), (625, 50674), (650, 48725), (1250, 25337), (1625, 19490), (1949, 16250), (3250, 9745), (3898, 8125)]