218368720

素因数分解:

$2^4\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{2221}}^1$

素因数の和:3463

約数の個数: 40

約数和(自身を含む): 508349160

約数和(自身を除く): 289980440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1229, 2221, 2458, 4442, 4916, 6145, 8884, 9832, 11105, 12290, 17768, 19664, 22210, 24580, 35536, 44420, 49160, 88840, 98320, 177680, 2729609, 5459218, 10918436, 13648045, 21836872, 27296090, 43673744, 54592180, 109184360, 218368720]

約数ペア:

[(1, 218368720), (2, 109184360), (4, 54592180), (5, 43673744), (8, 27296090), (10, 21836872), (16, 13648045), (20, 10918436), (40, 5459218), (80, 2729609), (1229, 177680), (2221, 98320), (2458, 88840), (4442, 49160), (4916, 44420), (6145, 35536), (8884, 24580), (9832, 22210), (11105, 19664), (12290, 17768)]