399375064

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{9319}}^1$

素因数の和:9823

約数の個数: 32

約数和(自身を含む): 818668800

約数和(自身を除く): 419293736

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 487, 974, 1948, 3896, 5357, 9319, 10714, 18638, 21428, 37276, 42856, 74552, 102509, 205018, 410036, 820072, 4538353, 9076706, 18153412, 36306824, 49921883, 99843766, 199687532, 399375064]

約数ペア:

[(1, 399375064), (2, 199687532), (4, 99843766), (8, 49921883), (11, 36306824), (22, 18153412), (44, 9076706), (88, 4538353), (487, 820072), (974, 410036), (1948, 205018), (3896, 102509), (5357, 74552), (9319, 42856), (10714, 37276), (18638, 21428)]