8741720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16811}}^1$

素因数の和:16835

約数の個数: 32

約数和(自身を含む): 21183120

約数和(自身を除く): 12441400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16811, 33622, 67244, 84055, 134488, 168110, 218543, 336220, 437086, 672440, 874172, 1092715, 1748344, 2185430, 4370860, 8741720]

約数ペア:

[(1, 8741720), (2, 4370860), (4, 2185430), (5, 1748344), (8, 1092715), (10, 874172), (13, 672440), (20, 437086), (26, 336220), (40, 218543), (52, 168110), (65, 134488), (104, 84055), (130, 67244), (260, 33622), (520, 16811)]