81544180

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{49123}}^1$

素因数の和:49215

約数の個数: 24

約数和(自身を含む): 173309472

約数和(自身を除く): 91765292

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 49123, 98246, 196492, 245615, 491230, 982460, 4077209, 8154418, 16308836, 20386045, 40772090, 81544180]

約数ペア:

[(1, 81544180), (2, 40772090), (4, 20386045), (5, 16308836), (10, 8154418), (20, 4077209), (83, 982460), (166, 491230), (332, 245615), (415, 196492), (830, 98246), (1660, 49123)]