289290440

素因数分解:

$2^3\times 5^1\times {\mathrm{7232261}}^1$

素因数の和:7232272

約数の個数: 16

約数和(自身を含む): 650903580

約数和(自身を除く): 361613140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7232261, 14464522, 28929044, 36161305, 57858088, 72322610, 144645220, 289290440]

約数ペア:

[(1, 289290440), (2, 144645220), (4, 72322610), (5, 57858088), (8, 36161305), (10, 28929044), (20, 14464522), (40, 7232261)]