40521440

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1009}}^1$

素因数の和:1275

約数の個数: 48

約数和(自身を含む): 96208560

約数和(自身を除く): 55687120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 1004, 1009, 1255, 2008, 2018, 2510, 4016, 4036, 5020, 5045, 8032, 8072, 10040, 10090, 16144, 20080, 20180, 32288, 40160, 40360, 80720, 161440, 253259, 506518, 1013036, 1266295, 2026072, 2532590, 4052144, 5065180, 8104288, 10130360, 20260720, 40521440]

約数ペア:

[(1, 40521440), (2, 20260720), (4, 10130360), (5, 8104288), (8, 5065180), (10, 4052144), (16, 2532590), (20, 2026072), (32, 1266295), (40, 1013036), (80, 506518), (160, 253259), (251, 161440), (502, 80720), (1004, 40360), (1009, 40160), (1255, 32288), (2008, 20180), (2018, 20080), (2510, 16144), (4016, 10090), (4036, 10040), (5020, 8072), (5045, 8032)]