20781750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{229}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 57264480

約数和(自身を除く): 36482730

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 121, 125, 150, 165, 229, 242, 250, 275, 330, 363, 375, 458, 550, 605, 687, 726, 750, 825, 1145, 1210, 1374, 1375, 1650, 1815, 2290, 2519, 2750, 3025, 3435, 3630, 4125, 5038, 5725, 6050, 6870, 7557, 8250, 9075, 11450, 12595, 15114, 15125, 17175, 18150, 25190, 27709, 28625, 30250, 34350, 37785, 45375, 55418, 57250, 62975, 75570, 83127, 85875, 90750, 125950, 138545, 166254, 171750, 188925, 277090, 314875, 377850, 415635, 629750, 692725, 831270, 944625, 1385450, 1889250, 2078175, 3463625, 4156350, 6927250, 10390875, 20781750]

約数ペア:

[(1, 20781750), (2, 10390875), (3, 6927250), (5, 4156350), (6, 3463625), (10, 2078175), (11, 1889250), (15, 1385450), (22, 944625), (25, 831270), (30, 692725), (33, 629750), (50, 415635), (55, 377850), (66, 314875), (75, 277090), (110, 188925), (121, 171750), (125, 166254), (150, 138545), (165, 125950), (229, 90750), (242, 85875), (250, 83127), (275, 75570), (330, 62975), (363, 57250), (375, 55418), (458, 45375), (550, 37785), (605, 34350), (687, 30250), (726, 28625), (750, 27709), (825, 25190), (1145, 18150), (1210, 17175), (1374, 15125), (1375, 15114), (1650, 12595), (1815, 11450), (2290, 9075), (2519, 8250), (2750, 7557), (3025, 6870), (3435, 6050), (3630, 5725), (4125, 5038)]