86781980

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{6353}}^1$

素因数の和:7045

約数の個数: 24

約数和(自身を含む): 182537712

約数和(自身を除く): 95755732

約数列:

[1, 2, 4, 5, 10, 20, 683, 1366, 2732, 3415, 6353, 6830, 12706, 13660, 25412, 31765, 63530, 127060, 4339099, 8678198, 17356396, 21695495, 43390990, 86781980]

約数ペア:

[(1, 86781980), (2, 43390990), (4, 21695495), (5, 17356396), (10, 8678198), (20, 4339099), (683, 127060), (1366, 63530), (2732, 31765), (3415, 25412), (6353, 13660), (6830, 12706)]