281644240

素因数分解:

$2^4\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{3221}}^1$

素因数の和:4327

約数の個数: 40

約数和(自身を含む): 655625448

約数和(自身を除く): 373981208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1093, 2186, 3221, 4372, 5465, 6442, 8744, 10930, 12884, 16105, 17488, 21860, 25768, 32210, 43720, 51536, 64420, 87440, 128840, 257680, 3520553, 7041106, 14082212, 17602765, 28164424, 35205530, 56328848, 70411060, 140822120, 281644240]

約数ペア:

[(1, 281644240), (2, 140822120), (4, 70411060), (5, 56328848), (8, 35205530), (10, 28164424), (16, 17602765), (20, 14082212), (40, 7041106), (80, 3520553), (1093, 257680), (2186, 128840), (3221, 87440), (4372, 64420), (5465, 51536), (6442, 43720), (8744, 32210), (10930, 25768), (12884, 21860), (16105, 17488)]