1315721720

素因数分解:

$2^3\times 5^1\times {\mathrm{32893043}}^1$

素因数の和:32893054

約数の個数: 16

約数和(自身を含む): 2960373960

約数和(自身を除く): 1644652240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 32893043, 65786086, 131572172, 164465215, 263144344, 328930430, 657860860, 1315721720]

約数ペア:

[(1, 1315721720), (2, 657860860), (4, 328930430), (5, 263144344), (8, 164465215), (10, 131572172), (20, 65786086), (40, 32893043)]