20678940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114883}}^1$

素因数の和:114898

約数の個数: 36

約数和(自身を含む): 62726664

約数和(自身を除く): 42047724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114883, 229766, 344649, 459532, 574415, 689298, 1033947, 1148830, 1378596, 1723245, 2067894, 2297660, 3446490, 4135788, 5169735, 6892980, 10339470, 20678940]

約数ペア:

[(1, 20678940), (2, 10339470), (3, 6892980), (4, 5169735), (5, 4135788), (6, 3446490), (9, 2297660), (10, 2067894), (12, 1723245), (15, 1378596), (18, 1148830), (20, 1033947), (30, 689298), (36, 574415), (45, 459532), (60, 344649), (90, 229766), (180, 114883)]