80409400

素因数分解:

$2^3\times 5^2\times {\mathrm{409}}^1\times {\mathrm{983}}^1$

素因数の和:1408

約数の個数: 48

約数和(自身を含む): 187599600

約数和(自身を除く): 107190200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 409, 818, 983, 1636, 1966, 2045, 3272, 3932, 4090, 4915, 7864, 8180, 9830, 10225, 16360, 19660, 20450, 24575, 39320, 40900, 49150, 81800, 98300, 196600, 402047, 804094, 1608188, 2010235, 3216376, 4020470, 8040940, 10051175, 16081880, 20102350, 40204700, 80409400]

約数ペア:

[(1, 80409400), (2, 40204700), (4, 20102350), (5, 16081880), (8, 10051175), (10, 8040940), (20, 4020470), (25, 3216376), (40, 2010235), (50, 1608188), (100, 804094), (200, 402047), (409, 196600), (818, 98300), (983, 81800), (1636, 49150), (1966, 40900), (2045, 39320), (3272, 24575), (3932, 20450), (4090, 19660), (4915, 16360), (7864, 10225), (8180, 9830)]