42839020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1949}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 103521600

約数和(自身を除く): 60682580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 1949, 2198, 3140, 3898, 4396, 5495, 7796, 9745, 10990, 13643, 19490, 21980, 27286, 38980, 54572, 68215, 136430, 272860, 305993, 611986, 1223972, 1529965, 2141951, 3059930, 4283902, 6119860, 8567804, 10709755, 21419510, 42839020]

約数ペア:

[(1, 42839020), (2, 21419510), (4, 10709755), (5, 8567804), (7, 6119860), (10, 4283902), (14, 3059930), (20, 2141951), (28, 1529965), (35, 1223972), (70, 611986), (140, 305993), (157, 272860), (314, 136430), (628, 68215), (785, 54572), (1099, 38980), (1570, 27286), (1949, 21980), (2198, 19490), (3140, 13643), (3898, 10990), (4396, 9745), (5495, 7796)]