81674425

素因数分解:

$5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1093}}^1$

素因数の和:1178

約数の個数: 36

約数和(自身を含む): 119852076

約数和(自身を除く): 38177651

約数列:

[1, 5, 7, 25, 35, 49, 61, 175, 245, 305, 427, 1093, 1225, 1525, 2135, 2989, 5465, 7651, 10675, 14945, 27325, 38255, 53557, 66673, 74725, 191275, 267785, 333365, 466711, 1338925, 1666825, 2333555, 3266977, 11667775, 16334885, 81674425]

約数ペア:

[(1, 81674425), (5, 16334885), (7, 11667775), (25, 3266977), (35, 2333555), (49, 1666825), (61, 1338925), (175, 466711), (245, 333365), (305, 267785), (427, 191275), (1093, 74725), (1225, 66673), (1525, 53557), (2135, 38255), (2989, 27325), (5465, 14945), (7651, 10675)]