80456960

素因数分解:

$2^8\times 5^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 194261760

約数和(自身を除く): 113804800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 256, 263, 320, 478, 526, 640, 956, 1052, 1195, 1280, 1315, 1912, 2104, 2390, 2630, 3824, 4208, 4780, 5260, 7648, 8416, 9560, 10520, 15296, 16832, 19120, 21040, 30592, 33664, 38240, 42080, 61184, 62857, 67328, 76480, 84160, 125714, 152960, 168320, 251428, 305920, 314285, 336640, 502856, 628570, 1005712, 1257140, 2011424, 2514280, 4022848, 5028560, 8045696, 10057120, 16091392, 20114240, 40228480, 80456960]

約数ペア:

[(1, 80456960), (2, 40228480), (4, 20114240), (5, 16091392), (8, 10057120), (10, 8045696), (16, 5028560), (20, 4022848), (32, 2514280), (40, 2011424), (64, 1257140), (80, 1005712), (128, 628570), (160, 502856), (239, 336640), (256, 314285), (263, 305920), (320, 251428), (478, 168320), (526, 152960), (640, 125714), (956, 84160), (1052, 76480), (1195, 67328), (1280, 62857), (1315, 61184), (1912, 42080), (2104, 38240), (2390, 33664), (2630, 30592), (3824, 21040), (4208, 19120), (4780, 16832), (5260, 15296), (7648, 10520), (8416, 9560)]