20573240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5779}}^1$

素因数の和:5879

約数の個数: 32

約数和(自身を含む): 46818000

約数和(自身を除く): 26244760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5779, 11558, 23116, 28895, 46232, 57790, 115580, 231160, 514331, 1028662, 2057324, 2571655, 4114648, 5143310, 10286620, 20573240]

約数ペア:

[(1, 20573240), (2, 10286620), (4, 5143310), (5, 4114648), (8, 2571655), (10, 2057324), (20, 1028662), (40, 514331), (89, 231160), (178, 115580), (356, 57790), (445, 46232), (712, 28895), (890, 23116), (1780, 11558), (3560, 5779)]