20228175

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{743}}^1$

素因数の和:781

約数の個数: 54

約数和(自身を含む): 39877656

約数和(自身を除く): 19649481

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 165, 225, 275, 363, 495, 605, 743, 825, 1089, 1815, 2229, 2475, 3025, 3715, 5445, 6687, 8173, 9075, 11145, 18575, 24519, 27225, 33435, 40865, 55725, 73557, 89903, 122595, 167175, 204325, 269709, 367785, 449515, 612975, 809127, 1348545, 1838925, 2247575, 4045635, 6742725, 20228175]

約数ペア:

[(1, 20228175), (3, 6742725), (5, 4045635), (9, 2247575), (11, 1838925), (15, 1348545), (25, 809127), (33, 612975), (45, 449515), (55, 367785), (75, 269709), (99, 204325), (121, 167175), (165, 122595), (225, 89903), (275, 73557), (363, 55725), (495, 40865), (605, 33435), (743, 27225), (825, 24519), (1089, 18575), (1815, 11145), (2229, 9075), (2475, 8173), (3025, 6687), (3715, 5445)]