40288280

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1789}}^1$

素因数の和:2363

約数の個数: 32

約数和(自身を含む): 90860400

約数和(自身を除く): 50572120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 1789, 2252, 2815, 3578, 4504, 5630, 7156, 8945, 11260, 14312, 17890, 22520, 35780, 71560, 1007207, 2014414, 4028828, 5036035, 8057656, 10072070, 20144140, 40288280]

約数ペア:

[(1, 40288280), (2, 20144140), (4, 10072070), (5, 8057656), (8, 5036035), (10, 4028828), (20, 2014414), (40, 1007207), (563, 71560), (1126, 35780), (1789, 22520), (2252, 17890), (2815, 14312), (3578, 11260), (4504, 8945), (5630, 7156)]