20280840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{169007}}^1$

素因数の和:169021

約数の個数: 32

約数和(自身を含む): 60842880

約数和(自身を除く): 40562040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 169007, 338014, 507021, 676028, 845035, 1014042, 1352056, 1690070, 2028084, 2535105, 3380140, 4056168, 5070210, 6760280, 10140420, 20280840]

約数ペア:

[(1, 20280840), (2, 10140420), (3, 6760280), (4, 5070210), (5, 4056168), (6, 3380140), (8, 2535105), (10, 2028084), (12, 1690070), (15, 1352056), (20, 1014042), (24, 845035), (30, 676028), (40, 507021), (60, 338014), (120, 169007)]