28371460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109121}}^1$

素因数の和:109143

約数の個数: 24

約数和(自身を含む): 64163736

約数和(自身を除く): 35792276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109121, 218242, 436484, 545605, 1091210, 1418573, 2182420, 2837146, 5674292, 7092865, 14185730, 28371460]

約数ペア:

[(1, 28371460), (2, 14185730), (4, 7092865), (5, 5674292), (10, 2837146), (13, 2182420), (20, 1418573), (26, 1091210), (52, 545605), (65, 436484), (130, 218242), (260, 109121)]