81764120

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{30509}}^1$

素因数の和:30587

約数の個数: 32

約数和(自身を含む): 186721200

約数和(自身を除く): 104957080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 30509, 61018, 122036, 152545, 244072, 305090, 610180, 1220360, 2044103, 4088206, 8176412, 10220515, 16352824, 20441030, 40882060, 81764120]

約数ペア:

[(1, 81764120), (2, 40882060), (4, 20441030), (5, 16352824), (8, 10220515), (10, 8176412), (20, 4088206), (40, 2044103), (67, 1220360), (134, 610180), (268, 305090), (335, 244072), (536, 152545), (670, 122036), (1340, 61018), (2680, 30509)]