13371640

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{947}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 30203280

約数和(自身を除く): 16831640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 947, 1412, 1765, 1894, 2824, 3530, 3788, 4735, 7060, 7576, 9470, 14120, 18940, 37880, 334291, 668582, 1337164, 1671455, 2674328, 3342910, 6685820, 13371640]

約数ペア:

[(1, 13371640), (2, 6685820), (4, 3342910), (5, 2674328), (8, 1671455), (10, 1337164), (20, 668582), (40, 334291), (353, 37880), (706, 18940), (947, 14120), (1412, 9470), (1765, 7576), (1894, 7060), (2824, 4735), (3530, 3788)]