28658825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{809}}^1$

素因数の和:941

約数の個数: 24

約数和(自身を含む): 38669400

約数和(自身を除く): 10010575

約数列:

[1, 5, 13, 25, 65, 109, 325, 545, 809, 1417, 2725, 4045, 7085, 10517, 20225, 35425, 52585, 88181, 262925, 440905, 1146353, 2204525, 5731765, 28658825]

約数ペア:

[(1, 28658825), (5, 5731765), (13, 2204525), (25, 1146353), (65, 440905), (109, 262925), (325, 88181), (545, 52585), (809, 35425), (1417, 20225), (2725, 10517), (4045, 7085)]