81665885

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1319}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 117849600

約数和(自身を除く): 36183715

約数列:

[1, 5, 7, 29, 35, 61, 145, 203, 305, 427, 1015, 1319, 1769, 2135, 6595, 8845, 9233, 12383, 38251, 46165, 61915, 80459, 191255, 267757, 402295, 563213, 1338785, 2333311, 2816065, 11666555, 16333177, 81665885]

約数ペア:

[(1, 81665885), (5, 16333177), (7, 11666555), (29, 2816065), (35, 2333311), (61, 1338785), (145, 563213), (203, 402295), (305, 267757), (427, 191255), (1015, 80459), (1319, 61915), (1769, 46165), (2135, 38251), (6595, 12383), (8845, 9233)]