42521590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{643}}^1$

素因数の和:1056

約数の個数: 32

約数和(自身を含む): 81375840

約数和(自身を除く): 38854250

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 389, 643, 778, 1286, 1945, 3215, 3890, 6430, 6613, 10931, 13226, 21862, 33065, 54655, 66130, 109310, 250127, 500254, 1250635, 2501270, 4252159, 8504318, 21260795, 42521590]

約数ペア:

[(1, 42521590), (2, 21260795), (5, 8504318), (10, 4252159), (17, 2501270), (34, 1250635), (85, 500254), (170, 250127), (389, 109310), (643, 66130), (778, 54655), (1286, 33065), (1945, 21862), (3215, 13226), (3890, 10931), (6430, 6613)]