20359440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28277}}^1$

素因数の和:28296

約数の個数: 60

約数和(自身を含む): 68376204

約数和(自身を除く): 48016764

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, 28277, 56554, 84831, 113108, 141385, 169662, 226216, 254493, 282770, 339324, 424155, 452432, 508986, 565540, 678648, 848310, 1017972, 1131080, 1272465, 1357296, 1696620, 2035944, 2262160, 2544930, 3393240, 4071888, 5089860, 6786480, 10179720, 20359440]

約数ペア:

[(1, 20359440), (2, 10179720), (3, 6786480), (4, 5089860), (5, 4071888), (6, 3393240), (8, 2544930), (9, 2262160), (10, 2035944), (12, 1696620), (15, 1357296), (16, 1272465), (18, 1131080), (20, 1017972), (24, 848310), (30, 678648), (36, 565540), (40, 508986), (45, 452432), (48, 424155), (60, 339324), (72, 282770), (80, 254493), (90, 226216), (120, 169662), (144, 141385), (180, 113108), (240, 84831), (360, 56554), (720, 28277)]