90651664

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:679

約数の個数: 40

約数和(自身を含む): 179452800

約数和(自身を除く): 88801136

約数列:

[1, 2, 4, 8, 16, 71, 142, 199, 284, 398, 401, 568, 796, 802, 1136, 1592, 1604, 3184, 3208, 6416, 14129, 28258, 28471, 56516, 56942, 79799, 113032, 113884, 159598, 226064, 227768, 319196, 455536, 638392, 1276784, 5665729, 11331458, 22662916, 45325832, 90651664]

約数ペア:

[(1, 90651664), (2, 45325832), (4, 22662916), (8, 11331458), (16, 5665729), (71, 1276784), (142, 638392), (199, 455536), (284, 319196), (398, 227768), (401, 226064), (568, 159598), (796, 113884), (802, 113032), (1136, 79799), (1592, 56942), (1604, 56516), (3184, 28471), (3208, 28258), (6416, 14129)]