28372825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1303}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 38483648

約数和(自身を除く): 10110823

約数列:

[1, 5, 13, 25, 65, 67, 325, 335, 871, 1303, 1675, 4355, 6515, 16939, 21775, 32575, 84695, 87301, 423475, 436505, 1134913, 2182525, 5674565, 28372825]

約数ペア:

[(1, 28372825), (5, 5674565), (13, 2182525), (25, 1134913), (65, 436505), (67, 423475), (325, 87301), (335, 84695), (871, 32575), (1303, 21775), (1675, 16939), (4355, 6515)]