20199358218

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{489539}}^1$

素因数の和:489603

約数の個数: 48

約数和(自身を含む): 45480224160

約数和(自身を除く): 25280865942

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 529, 598, 897, 1058, 1587, 1794, 3174, 6877, 13754, 20631, 41262, 489539, 979078, 1468617, 2937234, 6364007, 11259397, 12728014, 19092021, 22518794, 33778191, 38184042, 67556382, 146372161, 258966131, 292744322, 439116483, 517932262, 776898393, 878232966, 1553796786, 3366559703, 6733119406, 10099679109, 20199358218]

約数ペア:

[(1, 20199358218), (2, 10099679109), (3, 6733119406), (6, 3366559703), (13, 1553796786), (23, 878232966), (26, 776898393), (39, 517932262), (46, 439116483), (69, 292744322), (78, 258966131), (138, 146372161), (299, 67556382), (529, 38184042), (598, 33778191), (897, 22518794), (1058, 19092021), (1587, 12728014), (1794, 11259397), (3174, 6364007), (6877, 2937234), (13754, 1468617), (20631, 979078), (41262, 489539)]