661566164

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1\times {\mathrm{1103}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 1369030656

約数和(自身を除く): 707464492

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 691, 868, 1103, 1382, 2206, 2764, 4412, 4837, 7721, 9674, 15442, 19348, 21421, 30884, 34193, 42842, 68386, 85684, 136772, 149947, 239351, 299894, 478702, 599788, 762173, 957404, 1524346, 3048692, 5335211, 10670422, 21340844, 23627363, 47254726, 94509452, 165391541, 330783082, 661566164]

約数ペア:

[(1, 661566164), (2, 330783082), (4, 165391541), (7, 94509452), (14, 47254726), (28, 23627363), (31, 21340844), (62, 10670422), (124, 5335211), (217, 3048692), (434, 1524346), (691, 957404), (868, 762173), (1103, 599788), (1382, 478702), (2206, 299894), (2764, 239351), (4412, 149947), (4837, 136772), (7721, 85684), (9674, 68386), (15442, 42842), (19348, 34193), (21421, 30884)]