161585236225

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{358859}}^1$

素因数の和:358990

約数の個数: 48

約数和(自身を含む): 239224688640

約数和(自身を除く): 77639452415

約数列:

[1, 5, 7, 25, 31, 35, 83, 155, 175, 217, 415, 581, 775, 1085, 2075, 2573, 2905, 5425, 12865, 14525, 18011, 64325, 90055, 358859, 450275, 1794295, 2512013, 8971475, 11124629, 12560065, 29785297, 55623145, 62800325, 77872403, 148926485, 208497079, 278115725, 389362015, 744632425, 923344207, 1042485395, 1946810075, 4616721035, 5212426975, 6463409449, 23083605175, 32317047245, 161585236225]

約数ペア:

[(1, 161585236225), (5, 32317047245), (7, 23083605175), (25, 6463409449), (31, 5212426975), (35, 4616721035), (83, 1946810075), (155, 1042485395), (175, 923344207), (217, 744632425), (415, 389362015), (581, 278115725), (775, 208497079), (1085, 148926485), (2075, 77872403), (2573, 62800325), (2905, 55623145), (5425, 29785297), (12865, 12560065), (14525, 11124629), (18011, 8971475), (64325, 2512013), (90055, 1794295), (358859, 450275)]