20149580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1367}}^1$

素因数の和:1454

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 26734516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1367, 1474, 2734, 2948, 3685, 5468, 6835, 7370, 13670, 14740, 15037, 27340, 30074, 60148, 75185, 91589, 150370, 183178, 300740, 366356, 457945, 915890, 1007479, 1831780, 2014958, 4029916, 5037395, 10074790, 20149580]

約数ペア:

[(1, 20149580), (2, 10074790), (4, 5037395), (5, 4029916), (10, 2014958), (11, 1831780), (20, 1007479), (22, 915890), (44, 457945), (55, 366356), (67, 300740), (110, 183178), (134, 150370), (220, 91589), (268, 75185), (335, 60148), (670, 30074), (737, 27340), (1340, 15037), (1367, 14740), (1474, 13670), (2734, 7370), (2948, 6835), (3685, 5468)]