81666040

素因数分解:

$2^3\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{1487}}^1$

素因数の和:2871

約数の個数: 32

約数和(自身を含む): 184006080

約数和(自身を除く): 102340040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1373, 1487, 2746, 2974, 5492, 5948, 6865, 7435, 10984, 11896, 13730, 14870, 27460, 29740, 54920, 59480, 2041651, 4083302, 8166604, 10208255, 16333208, 20416510, 40833020, 81666040]

約数ペア:

[(1, 81666040), (2, 40833020), (4, 20416510), (5, 16333208), (8, 10208255), (10, 8166604), (20, 4083302), (40, 2041651), (1373, 59480), (1487, 54920), (2746, 29740), (2974, 27460), (5492, 14870), (5948, 13730), (6865, 11896), (7435, 10984)]