81241964

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{331}}^1\times {\mathrm{1427}}^1$

素因数の和:1805

約数の個数: 24

約数和(自身を含む): 146021568

約数和(自身を除く): 64779604

約数列:

[1, 2, 4, 43, 86, 172, 331, 662, 1324, 1427, 2854, 5708, 14233, 28466, 56932, 61361, 122722, 245444, 472337, 944674, 1889348, 20310491, 40620982, 81241964]

約数ペア:

[(1, 81241964), (2, 40620982), (4, 20310491), (43, 1889348), (86, 944674), (172, 472337), (331, 245444), (662, 122722), (1324, 61361), (1427, 56932), (2854, 28466), (5708, 14233)]