80161840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1283}}^1$

素因数の和:1378

約数の個数: 80

約数和(自身を含む): 206343936

約数和(自身を除く): 126182096

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1283, 1420, 1562, 2566, 2840, 3124, 3905, 5132, 5680, 6248, 6415, 7810, 10264, 12496, 12830, 14113, 15620, 20528, 25660, 28226, 31240, 51320, 56452, 62480, 70565, 91093, 102640, 112904, 141130, 182186, 225808, 282260, 364372, 455465, 564520, 728744, 910930, 1002023, 1129040, 1457488, 1821860, 2004046, 3643720, 4008092, 5010115, 7287440, 8016184, 10020230, 16032368, 20040460, 40080920, 80161840]

約数ペア:

[(1, 80161840), (2, 40080920), (4, 20040460), (5, 16032368), (8, 10020230), (10, 8016184), (11, 7287440), (16, 5010115), (20, 4008092), (22, 3643720), (40, 2004046), (44, 1821860), (55, 1457488), (71, 1129040), (80, 1002023), (88, 910930), (110, 728744), (142, 564520), (176, 455465), (220, 364372), (284, 282260), (355, 225808), (440, 182186), (568, 141130), (710, 112904), (781, 102640), (880, 91093), (1136, 70565), (1283, 62480), (1420, 56452), (1562, 51320), (2566, 31240), (2840, 28226), (3124, 25660), (3905, 20528), (5132, 15620), (5680, 14113), (6248, 12830), (6415, 12496), (7810, 10264)]