20979750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{2543}}^1$

素因数の和:2574

約数の個数: 64

約数和(自身を含む): 57148416

約数和(自身を除く): 36168666

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 125, 150, 165, 250, 275, 330, 375, 550, 750, 825, 1375, 1650, 2543, 2750, 4125, 5086, 7629, 8250, 12715, 15258, 25430, 27973, 38145, 55946, 63575, 76290, 83919, 127150, 139865, 167838, 190725, 279730, 317875, 381450, 419595, 635750, 699325, 839190, 953625, 1398650, 1907250, 2097975, 3496625, 4195950, 6993250, 10489875, 20979750]

約数ペア:

[(1, 20979750), (2, 10489875), (3, 6993250), (5, 4195950), (6, 3496625), (10, 2097975), (11, 1907250), (15, 1398650), (22, 953625), (25, 839190), (30, 699325), (33, 635750), (50, 419595), (55, 381450), (66, 317875), (75, 279730), (110, 190725), (125, 167838), (150, 139865), (165, 127150), (250, 83919), (275, 76290), (330, 63575), (375, 55946), (550, 38145), (750, 27973), (825, 25430), (1375, 15258), (1650, 12715), (2543, 8250), (2750, 7629), (4125, 5086)]