40605680

素因数分解:

$2^4\times 5^1\times {\mathrm{507571}}^1$

素因数の和:507584

約数の個数: 20

約数和(自身を含む): 94408392

約数和(自身を除く): 53802712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 507571, 1015142, 2030284, 2537855, 4060568, 5075710, 8121136, 10151420, 20302840, 40605680]

約数ペア:

[(1, 40605680), (2, 20302840), (4, 10151420), (5, 8121136), (8, 5075710), (10, 4060568), (16, 2537855), (20, 2030284), (40, 1015142), (80, 507571)]