221544280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{937}}^1$

素因数の和:1228

約数の個数: 64

約数和(自身を含む): 522728640

約数和(自身を除く): 301184360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 257, 460, 514, 920, 937, 1028, 1285, 1874, 2056, 2570, 3748, 4685, 5140, 5911, 7496, 9370, 10280, 11822, 18740, 21551, 23644, 29555, 37480, 43102, 47288, 59110, 86204, 107755, 118220, 172408, 215510, 236440, 240809, 431020, 481618, 862040, 963236, 1204045, 1926472, 2408090, 4816180, 5538607, 9632360, 11077214, 22154428, 27693035, 44308856, 55386070, 110772140, 221544280]

約数ペア:

[(1, 221544280), (2, 110772140), (4, 55386070), (5, 44308856), (8, 27693035), (10, 22154428), (20, 11077214), (23, 9632360), (40, 5538607), (46, 4816180), (92, 2408090), (115, 1926472), (184, 1204045), (230, 963236), (257, 862040), (460, 481618), (514, 431020), (920, 240809), (937, 236440), (1028, 215510), (1285, 172408), (1874, 118220), (2056, 107755), (2570, 86204), (3748, 59110), (4685, 47288), (5140, 43102), (5911, 37480), (7496, 29555), (9370, 23644), (10280, 21551), (11822, 18740)]