20705400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11503}}^1$

素因数の和:11525

約数の個数: 72

約数和(自身を含む): 69541680

約数和(自身を除く): 48836280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 11503, 23006, 34509, 46012, 57515, 69018, 92024, 103527, 115030, 138036, 172545, 207054, 230060, 276072, 287575, 345090, 414108, 460120, 517635, 575150, 690180, 828216, 862725, 1035270, 1150300, 1380360, 1725450, 2070540, 2300600, 2588175, 3450900, 4141080, 5176350, 6901800, 10352700, 20705400]

約数ペア:

[(1, 20705400), (2, 10352700), (3, 6901800), (4, 5176350), (5, 4141080), (6, 3450900), (8, 2588175), (9, 2300600), (10, 2070540), (12, 1725450), (15, 1380360), (18, 1150300), (20, 1035270), (24, 862725), (25, 828216), (30, 690180), (36, 575150), (40, 517635), (45, 460120), (50, 414108), (60, 345090), (72, 287575), (75, 276072), (90, 230060), (100, 207054), (120, 172545), (150, 138036), (180, 115030), (200, 103527), (225, 92024), (300, 69018), (360, 57515), (450, 46012), (600, 34509), (900, 23006), (1800, 11503)]