189905690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47123}}^1$

素因数の和:47174

約数の個数: 32

約数和(自身を含む): 380007936

約数和(自身を除く): 190102246

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 47123, 94246, 235615, 471230, 612599, 1225198, 1460813, 2921626, 3062995, 6125990, 7304065, 14608130, 18990569, 37981138, 94952845, 189905690]

約数ペア:

[(1, 189905690), (2, 94952845), (5, 37981138), (10, 18990569), (13, 14608130), (26, 7304065), (31, 6125990), (62, 3062995), (65, 2921626), (130, 1460813), (155, 1225198), (310, 612599), (403, 471230), (806, 235615), (2015, 94246), (4030, 47123)]