40694420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{557}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 92525328

約数和(自身を除く): 51830908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 281, 557, 562, 1114, 1124, 1405, 2228, 2785, 2810, 3653, 5570, 5620, 7241, 7306, 11140, 14482, 14612, 18265, 28964, 36205, 36530, 72410, 73060, 144820, 156517, 313034, 626068, 782585, 1565170, 2034721, 3130340, 4069442, 8138884, 10173605, 20347210, 40694420]

約数ペア:

[(1, 40694420), (2, 20347210), (4, 10173605), (5, 8138884), (10, 4069442), (13, 3130340), (20, 2034721), (26, 1565170), (52, 782585), (65, 626068), (130, 313034), (260, 156517), (281, 144820), (557, 73060), (562, 72410), (1114, 36530), (1124, 36205), (1405, 28964), (2228, 18265), (2785, 14612), (2810, 14482), (3653, 11140), (5570, 7306), (5620, 7241)]