40228480

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 96940800

約数和(自身を除く): 56712320

約数列:

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

約数ペア:

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