1115232520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{648391}}^1$

素因数の和:648445

約数の個数: 32

約数和(自身を含む): 2567632320

約数和(自身を除く): 1452399800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 648391, 1296782, 2593564, 3241955, 5187128, 6483910, 12967820, 25935640, 27880813, 55761626, 111523252, 139404065, 223046504, 278808130, 557616260, 1115232520]

約数ペア:

[(1, 1115232520), (2, 557616260), (4, 278808130), (5, 223046504), (8, 139404065), (10, 111523252), (20, 55761626), (40, 27880813), (43, 25935640), (86, 12967820), (172, 6483910), (215, 5187128), (344, 3241955), (430, 2593564), (860, 1296782), (1720, 648391)]