228259960

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 523908000

約数和(自身を除く): 295648040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 197, 332, 349, 394, 415, 664, 698, 788, 830, 985, 1396, 1576, 1660, 1745, 1970, 2792, 3320, 3490, 3940, 6980, 7880, 13960, 16351, 28967, 32702, 57934, 65404, 68753, 81755, 115868, 130808, 137506, 144835, 163510, 231736, 275012, 289670, 327020, 343765, 550024, 579340, 654040, 687530, 1158680, 1375060, 2750120, 5706499, 11412998, 22825996, 28532495, 45651992, 57064990, 114129980, 228259960]

約数ペア:

[(1, 228259960), (2, 114129980), (4, 57064990), (5, 45651992), (8, 28532495), (10, 22825996), (20, 11412998), (40, 5706499), (83, 2750120), (166, 1375060), (197, 1158680), (332, 687530), (349, 654040), (394, 579340), (415, 550024), (664, 343765), (698, 327020), (788, 289670), (830, 275012), (985, 231736), (1396, 163510), (1576, 144835), (1660, 137506), (1745, 130808), (1970, 115868), (2792, 81755), (3320, 68753), (3490, 65404), (3940, 57934), (6980, 32702), (7880, 28967), (13960, 16351)]