20098544

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:405

約数の個数: 40

約数和(自身を含む): 40330752

約数和(自身を除く): 20232208

約数列:

[1, 2, 4, 8, 16, 43, 86, 131, 172, 223, 262, 344, 446, 524, 688, 892, 1048, 1784, 2096, 3568, 5633, 9589, 11266, 19178, 22532, 29213, 38356, 45064, 58426, 76712, 90128, 116852, 153424, 233704, 467408, 1256159, 2512318, 5024636, 10049272, 20098544]

約数ペア:

[(1, 20098544), (2, 10049272), (4, 5024636), (8, 2512318), (16, 1256159), (43, 467408), (86, 233704), (131, 153424), (172, 116852), (223, 90128), (262, 76712), (344, 58426), (446, 45064), (524, 38356), (688, 29213), (892, 22532), (1048, 19178), (1784, 11266), (2096, 9589), (3568, 5633)]