72458440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 168854400

約数和(自身を除く): 96395960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 103, 172, 206, 215, 344, 409, 412, 430, 515, 818, 824, 860, 1030, 1636, 1720, 2045, 2060, 3272, 4090, 4120, 4429, 8180, 8858, 16360, 17587, 17716, 22145, 35174, 35432, 42127, 44290, 70348, 84254, 87935, 88580, 140696, 168508, 175870, 177160, 210635, 337016, 351740, 421270, 703480, 842540, 1685080, 1811461, 3622922, 7245844, 9057305, 14491688, 18114610, 36229220, 72458440]

約数ペア:

[(1, 72458440), (2, 36229220), (4, 18114610), (5, 14491688), (8, 9057305), (10, 7245844), (20, 3622922), (40, 1811461), (43, 1685080), (86, 842540), (103, 703480), (172, 421270), (206, 351740), (215, 337016), (344, 210635), (409, 177160), (412, 175870), (430, 168508), (515, 140696), (818, 88580), (824, 87935), (860, 84254), (1030, 70348), (1636, 44290), (1720, 42127), (2045, 35432), (2060, 35174), (3272, 22145), (4090, 17716), (4120, 17587), (4429, 16360), (8180, 8858)]