647279425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{9439}}^1$

素因数の和:9673

約数の個数: 24

約数和(自身を含む): 868555520

約数和(自身を除く): 221276095

約数列:

[1, 5, 13, 25, 65, 211, 325, 1055, 2743, 5275, 9439, 13715, 47195, 68575, 122707, 235975, 613535, 1991629, 3067675, 9958145, 25891177, 49790725, 129455885, 647279425]

約数ペア:

[(1, 647279425), (5, 129455885), (13, 49790725), (25, 25891177), (65, 9958145), (211, 3067675), (325, 1991629), (1055, 613535), (2743, 235975), (5275, 122707), (9439, 68575), (13715, 47195)]