42154220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123983}}^1$

素因数の和:124009

約数の個数: 24

約数和(自身を含む): 93731904

約数和(自身を除く): 51577684

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 123983, 247966, 495932, 619915, 1239830, 2107711, 2479660, 4215422, 8430844, 10538555, 21077110, 42154220]

約数ペア:

[(1, 42154220), (2, 21077110), (4, 10538555), (5, 8430844), (10, 4215422), (17, 2479660), (20, 2107711), (34, 1239830), (68, 619915), (85, 495932), (170, 247966), (340, 123983)]