80349280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:740

約数の個数: 96

約数和(自身を含む): 210325248

約数和(自身を除く): 129975968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 71, 80, 88, 110, 142, 160, 176, 220, 284, 352, 355, 440, 568, 643, 710, 781, 880, 1136, 1286, 1420, 1562, 1760, 2272, 2572, 2840, 3124, 3215, 3905, 5144, 5680, 6248, 6430, 7073, 7810, 10288, 11360, 12496, 12860, 14146, 15620, 20576, 24992, 25720, 28292, 31240, 35365, 45653, 51440, 56584, 62480, 70730, 91306, 102880, 113168, 124960, 141460, 182612, 226336, 228265, 282920, 365224, 456530, 502183, 565840, 730448, 913060, 1004366, 1131680, 1460896, 1826120, 2008732, 2510915, 3652240, 4017464, 5021830, 7304480, 8034928, 10043660, 16069856, 20087320, 40174640, 80349280]

約数ペア:

[(1, 80349280), (2, 40174640), (4, 20087320), (5, 16069856), (8, 10043660), (10, 8034928), (11, 7304480), (16, 5021830), (20, 4017464), (22, 3652240), (32, 2510915), (40, 2008732), (44, 1826120), (55, 1460896), (71, 1131680), (80, 1004366), (88, 913060), (110, 730448), (142, 565840), (160, 502183), (176, 456530), (220, 365224), (284, 282920), (352, 228265), (355, 226336), (440, 182612), (568, 141460), (643, 124960), (710, 113168), (781, 102880), (880, 91306), (1136, 70730), (1286, 62480), (1420, 56584), (1562, 51440), (1760, 45653), (2272, 35365), (2572, 31240), (2840, 28292), (3124, 25720), (3215, 24992), (3905, 20576), (5144, 15620), (5680, 14146), (6248, 12860), (6430, 12496), (7073, 11360), (7810, 10288)]