201280040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387077}}^1$

素因数の和:387101

約数の個数: 32

約数和(自身を含む): 487718280

約数和(自身を除く): 286438240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387077, 774154, 1548308, 1935385, 3096616, 3870770, 5032001, 7741540, 10064002, 15483080, 20128004, 25160005, 40256008, 50320010, 100640020, 201280040]

約数ペア:

[(1, 201280040), (2, 100640020), (4, 50320010), (5, 40256008), (8, 25160005), (10, 20128004), (13, 15483080), (20, 10064002), (26, 7741540), (40, 5032001), (52, 3870770), (65, 3096616), (104, 1935385), (130, 1548308), (260, 774154), (520, 387077)]