40251520

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 97277400

約数和(自身を除く): 57025880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 436, 545, 577, 640, 872, 1090, 1154, 1744, 2180, 2308, 2885, 3488, 4360, 4616, 5770, 6976, 8720, 9232, 11540, 13952, 17440, 18464, 23080, 34880, 36928, 46160, 62893, 69760, 73856, 92320, 125786, 184640, 251572, 314465, 369280, 503144, 628930, 1006288, 1257860, 2012576, 2515720, 4025152, 5031440, 8050304, 10062880, 20125760, 40251520]

約数ペア:

[(1, 40251520), (2, 20125760), (4, 10062880), (5, 8050304), (8, 5031440), (10, 4025152), (16, 2515720), (20, 2012576), (32, 1257860), (40, 1006288), (64, 628930), (80, 503144), (109, 369280), (128, 314465), (160, 251572), (218, 184640), (320, 125786), (436, 92320), (545, 73856), (577, 69760), (640, 62893), (872, 46160), (1090, 36928), (1154, 34880), (1744, 23080), (2180, 18464), (2308, 17440), (2885, 13952), (3488, 11540), (4360, 9232), (4616, 8720), (5770, 6976)]