81746640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113537}}^1$

素因数の和:113556

約数の個数: 60

約数和(自身を含む): 274534884

約数和(自身を除く): 192788244

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 113537, 227074, 340611, 454148, 567685, 681222, 908296, 1021833, 1135370, 1362444, 1703055, 1816592, 2043666, 2270740, 2724888, 3406110, 4087332, 4541480, 5109165, 5449776, 6812220, 8174664, 9082960, 10218330, 13624440, 16349328, 20436660, 27248880, 40873320, 81746640]

約数ペア:

[(1, 81746640), (2, 40873320), (3, 27248880), (4, 20436660), (5, 16349328), (6, 13624440), (8, 10218330), (9, 9082960), (10, 8174664), (12, 6812220), (15, 5449776), (16, 5109165), (18, 4541480), (20, 4087332), (24, 3406110), (30, 2724888), (36, 2270740), (40, 2043666), (45, 1816592), (48, 1703055), (60, 1362444), (72, 1135370), (80, 1021833), (90, 908296), (120, 681222), (144, 567685), (180, 454148), (240, 340611), (360, 227074), (720, 113537)]