28897505

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 44662464

約数和(自身を除く): 15764959

約数列:

[1, 5, 7, 13, 35, 43, 49, 65, 91, 211, 215, 245, 301, 455, 559, 637, 1055, 1477, 1505, 2107, 2743, 2795, 3185, 3913, 7385, 9073, 10339, 10535, 13715, 19201, 19565, 27391, 45365, 51695, 63511, 96005, 117949, 134407, 136955, 317555, 444577, 589745, 672035, 825643, 2222885, 4128215, 5779501, 28897505]

約数ペア:

[(1, 28897505), (5, 5779501), (7, 4128215), (13, 2222885), (35, 825643), (43, 672035), (49, 589745), (65, 444577), (91, 317555), (211, 136955), (215, 134407), (245, 117949), (301, 96005), (455, 63511), (559, 51695), (637, 45365), (1055, 27391), (1477, 19565), (1505, 19201), (2107, 13715), (2743, 10535), (2795, 10339), (3185, 9073), (3913, 7385)]