1989825

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 3371808

約数和(自身を除く): 1381983

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 617, 645, 1075, 1851, 3085, 3225, 9255, 15425, 26531, 46275, 79593, 132655, 397965, 663275, 1989825]

約数ペア:

[(1, 1989825), (3, 663275), (5, 397965), (15, 132655), (25, 79593), (43, 46275), (75, 26531), (129, 15425), (215, 9255), (617, 3225), (645, 3085), (1075, 1851)]