171250820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21247}}^1$

素因数の和:21300

約数の個数: 48

約数和(自身を含む): 399802368

約数和(自身を除く): 228551548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 21247, 42494, 84988, 106235, 212470, 276211, 424940, 552422, 658657, 1104844, 1317314, 1381055, 2634628, 2762110, 3293285, 5524220, 6586570, 8562541, 13173140, 17125082, 34250164, 42812705, 85625410, 171250820]

約数ペア:

[(1, 171250820), (2, 85625410), (4, 42812705), (5, 34250164), (10, 17125082), (13, 13173140), (20, 8562541), (26, 6586570), (31, 5524220), (52, 3293285), (62, 2762110), (65, 2634628), (124, 1381055), (130, 1317314), (155, 1104844), (260, 658657), (310, 552422), (403, 424940), (620, 276211), (806, 212470), (1612, 106235), (2015, 84988), (4030, 42494), (8060, 21247)]