218528080

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{9721}}^1$

素因数の和:10015

約数の個数: 40

約数和(自身を含む): 509938344

約数和(自身を除く): 291410264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 4496, 5620, 9721, 11240, 19442, 22480, 38884, 48605, 77768, 97210, 155536, 194420, 388840, 777680, 2731601, 5463202, 10926404, 13658005, 21852808, 27316010, 43705616, 54632020, 109264040, 218528080]

約数ペア:

[(1, 218528080), (2, 109264040), (4, 54632020), (5, 43705616), (8, 27316010), (10, 21852808), (16, 13658005), (20, 10926404), (40, 5463202), (80, 2731601), (281, 777680), (562, 388840), (1124, 194420), (1405, 155536), (2248, 97210), (2810, 77768), (4496, 48605), (5620, 38884), (9721, 22480), (11240, 19442)]