20700720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28751}}^1$

素因数の和:28770

約数の個数: 60

約数和(自身を含む): 69522336

約数和(自身を除く): 48821616

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28751, 57502, 86253, 115004, 143755, 172506, 230008, 258759, 287510, 345012, 431265, 460016, 517518, 575020, 690024, 862530, 1035036, 1150040, 1293795, 1380048, 1725060, 2070072, 2300080, 2587590, 3450120, 4140144, 5175180, 6900240, 10350360, 20700720]

約数ペア:

[(1, 20700720), (2, 10350360), (3, 6900240), (4, 5175180), (5, 4140144), (6, 3450120), (8, 2587590), (9, 2300080), (10, 2070072), (12, 1725060), (15, 1380048), (16, 1293795), (18, 1150040), (20, 1035036), (24, 862530), (30, 690024), (36, 575020), (40, 517518), (45, 460016), (48, 431265), (60, 345012), (72, 287510), (80, 258759), (90, 230008), (120, 172506), (144, 143755), (180, 115004), (240, 86253), (360, 57502), (720, 28751)]