87400840

素因数分解:

$2^3\times 5^1\times {\mathrm{2185021}}^1$

素因数の和:2185032

約数の個数: 16

約数和(自身を含む): 196651980

約数和(自身を除く): 109251140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2185021, 4370042, 8740084, 10925105, 17480168, 21850210, 43700420, 87400840]

約数ペア:

[(1, 87400840), (2, 43700420), (4, 21850210), (5, 17480168), (8, 10925105), (10, 8740084), (20, 4370042), (40, 2185021)]