72390440

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{9377}}^1$

素因数の和:9581

約数の個数: 32

約数和(自身を含む): 163739880

約数和(自身を除く): 91349440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 9377, 18754, 37508, 46885, 75016, 93770, 187540, 375080, 1809761, 3619522, 7239044, 9048805, 14478088, 18097610, 36195220, 72390440]

約数ペア:

[(1, 72390440), (2, 36195220), (4, 18097610), (5, 14478088), (8, 9048805), (10, 7239044), (20, 3619522), (40, 1809761), (193, 375080), (386, 187540), (772, 93770), (965, 75016), (1544, 46885), (1930, 37508), (3860, 18754), (7720, 9377)]