20587024

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1301}}^1$

素因数の和:1375

約数の個数: 40

約数和(自身を含む): 42622272

約数和(自身を除く): 22035248

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1301, 1978, 2602, 3956, 5204, 7912, 10408, 15824, 20816, 29923, 55943, 59846, 111886, 119692, 223772, 239384, 447544, 478768, 895088, 1286689, 2573378, 5146756, 10293512, 20587024]

約数ペア:

[(1, 20587024), (2, 10293512), (4, 5146756), (8, 2573378), (16, 1286689), (23, 895088), (43, 478768), (46, 447544), (86, 239384), (92, 223772), (172, 119692), (184, 111886), (344, 59846), (368, 55943), (688, 29923), (989, 20816), (1301, 15824), (1978, 10408), (2602, 7912), (3956, 5204)]