311770720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:548

約数の個数: 96

約数和(自身を含む): 766402560

約数和(自身を除く): 454631840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 239, 248, 263, 310, 478, 496, 526, 620, 956, 992, 1052, 1195, 1240, 1315, 1912, 2104, 2390, 2480, 2630, 3824, 4208, 4780, 4960, 5260, 7409, 7648, 8153, 8416, 9560, 10520, 14818, 16306, 19120, 21040, 29636, 32612, 37045, 38240, 40765, 42080, 59272, 62857, 65224, 74090, 81530, 118544, 125714, 130448, 148180, 163060, 237088, 251428, 260896, 296360, 314285, 326120, 502856, 592720, 628570, 652240, 1005712, 1185440, 1257140, 1304480, 1948567, 2011424, 2514280, 3897134, 5028560, 7794268, 9742835, 10057120, 15588536, 19485670, 31177072, 38971340, 62354144, 77942680, 155885360, 311770720]

約数ペア:

[(1, 311770720), (2, 155885360), (4, 77942680), (5, 62354144), (8, 38971340), (10, 31177072), (16, 19485670), (20, 15588536), (31, 10057120), (32, 9742835), (40, 7794268), (62, 5028560), (80, 3897134), (124, 2514280), (155, 2011424), (160, 1948567), (239, 1304480), (248, 1257140), (263, 1185440), (310, 1005712), (478, 652240), (496, 628570), (526, 592720), (620, 502856), (956, 326120), (992, 314285), (1052, 296360), (1195, 260896), (1240, 251428), (1315, 237088), (1912, 163060), (2104, 148180), (2390, 130448), (2480, 125714), (2630, 118544), (3824, 81530), (4208, 74090), (4780, 65224), (4960, 62857), (5260, 59272), (7409, 42080), (7648, 40765), (8153, 38240), (8416, 37045), (9560, 32612), (10520, 29636), (14818, 21040), (16306, 19120)]