20643720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172031}}^1$

素因数の和:172045

約数の個数: 32

約数和(自身を含む): 61931520

約数和(自身を除く): 41287800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172031, 344062, 516093, 688124, 860155, 1032186, 1376248, 1720310, 2064372, 2580465, 3440620, 4128744, 5160930, 6881240, 10321860, 20643720]

約数ペア:

[(1, 20643720), (2, 10321860), (3, 6881240), (4, 5160930), (5, 4128744), (6, 3440620), (8, 2580465), (10, 2064372), (12, 1720310), (15, 1376248), (20, 1032186), (24, 860155), (30, 688124), (40, 516093), (60, 344062), (120, 172031)]