89315720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{171761}}^1$

素因数の和:171785

約数の個数: 32

約数和(自身を含む): 216420120

約数和(自身を除く): 127104400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 171761, 343522, 687044, 858805, 1374088, 1717610, 2232893, 3435220, 4465786, 6870440, 8931572, 11164465, 17863144, 22328930, 44657860, 89315720]

約数ペア:

[(1, 89315720), (2, 44657860), (4, 22328930), (5, 17863144), (8, 11164465), (10, 8931572), (13, 6870440), (20, 4465786), (26, 3435220), (40, 2232893), (52, 1717610), (65, 1374088), (104, 858805), (130, 687044), (260, 343522), (520, 171761)]