131640760

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{9323}}^1$

素因数の和:9687

約数の個数: 32

約数和(自身を含む): 297062640

約数和(自身を除く): 165421880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 9323, 14120, 18646, 37292, 46615, 74584, 93230, 186460, 372920, 3291019, 6582038, 13164076, 16455095, 26328152, 32910190, 65820380, 131640760]

約数ペア:

[(1, 131640760), (2, 65820380), (4, 32910190), (5, 26328152), (8, 16455095), (10, 13164076), (20, 6582038), (40, 3291019), (353, 372920), (706, 186460), (1412, 93230), (1765, 74584), (2824, 46615), (3530, 37292), (7060, 18646), (9323, 14120)]