20729700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{743}}^1$

素因数の和:794

約数の個数: 108

約数和(自身を含む): 67162368

約数和(自身を除く): 46432668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 31, 36, 45, 50, 60, 62, 75, 90, 93, 100, 124, 150, 155, 180, 186, 225, 279, 300, 310, 372, 450, 465, 558, 620, 743, 775, 900, 930, 1116, 1395, 1486, 1550, 1860, 2229, 2325, 2790, 2972, 3100, 3715, 4458, 4650, 5580, 6687, 6975, 7430, 8916, 9300, 11145, 13374, 13950, 14860, 18575, 22290, 23033, 26748, 27900, 33435, 37150, 44580, 46066, 55725, 66870, 69099, 74300, 92132, 111450, 115165, 133740, 138198, 167175, 207297, 222900, 230330, 276396, 334350, 345495, 414594, 460660, 575825, 668700, 690990, 829188, 1036485, 1151650, 1381980, 1727475, 2072970, 2303300, 3454950, 4145940, 5182425, 6909900, 10364850, 20729700]

約数ペア:

[(1, 20729700), (2, 10364850), (3, 6909900), (4, 5182425), (5, 4145940), (6, 3454950), (9, 2303300), (10, 2072970), (12, 1727475), (15, 1381980), (18, 1151650), (20, 1036485), (25, 829188), (30, 690990), (31, 668700), (36, 575825), (45, 460660), (50, 414594), (60, 345495), (62, 334350), (75, 276396), (90, 230330), (93, 222900), (100, 207297), (124, 167175), (150, 138198), (155, 133740), (180, 115165), (186, 111450), (225, 92132), (279, 74300), (300, 69099), (310, 66870), (372, 55725), (450, 46066), (465, 44580), (558, 37150), (620, 33435), (743, 27900), (775, 26748), (900, 23033), (930, 22290), (1116, 18575), (1395, 14860), (1486, 13950), (1550, 13374), (1860, 11145), (2229, 9300), (2325, 8916), (2790, 7430), (2972, 6975), (3100, 6687), (3715, 5580), (4458, 4650)]