1728940

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 3663072

約数和(自身を除く): 1934132

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 631, 685, 1262, 1370, 2524, 2740, 3155, 6310, 12620, 86447, 172894, 345788, 432235, 864470, 1728940]

約数ペア:

[(1, 1728940), (2, 864470), (4, 432235), (5, 345788), (10, 172894), (20, 86447), (137, 12620), (274, 6310), (548, 3155), (631, 2740), (685, 2524), (1262, 1370)]