391121567228

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1\times {\mathrm{157519}}^1$

素因数の和:158850

約数の個数: 48

約数和(自身を含む): 793900800000

約数和(自身を除く): 402779232772

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1249, 1988, 2498, 4996, 8743, 17486, 34972, 88679, 157519, 177358, 315038, 354716, 620753, 630076, 1102633, 1241506, 2205266, 2483012, 4410532, 11183849, 22367698, 44735396, 78286943, 156573886, 196741231, 313147772, 393482462, 786964924, 1377188617, 2754377234, 5508754468, 13968627401, 27937254802, 55874509604, 97780391807, 195560783614, 391121567228]

約数ペア:

[(1, 391121567228), (2, 195560783614), (4, 97780391807), (7, 55874509604), (14, 27937254802), (28, 13968627401), (71, 5508754468), (142, 2754377234), (284, 1377188617), (497, 786964924), (994, 393482462), (1249, 313147772), (1988, 196741231), (2498, 156573886), (4996, 78286943), (8743, 44735396), (17486, 22367698), (34972, 11183849), (88679, 4410532), (157519, 2483012), (177358, 2205266), (315038, 1241506), (354716, 1102633), (620753, 630076)]