128591715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1499}}^1$

素因数の和:1576

約数の個数: 64

約数和(自身を含む): 253440000

約数和(自身を除く): 124848285

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 105, 129, 133, 215, 285, 301, 399, 645, 665, 817, 903, 1499, 1505, 1995, 2451, 4085, 4497, 4515, 5719, 7495, 10493, 12255, 17157, 22485, 28481, 28595, 31479, 52465, 64457, 85443, 85785, 142405, 157395, 193371, 199367, 322285, 427215, 451199, 598101, 966855, 996835, 1224683, 1353597, 2255995, 2990505, 3674049, 6123415, 6767985, 8572781, 18370245, 25718343, 42863905, 128591715]

約数ペア:

[(1, 128591715), (3, 42863905), (5, 25718343), (7, 18370245), (15, 8572781), (19, 6767985), (21, 6123415), (35, 3674049), (43, 2990505), (57, 2255995), (95, 1353597), (105, 1224683), (129, 996835), (133, 966855), (215, 598101), (285, 451199), (301, 427215), (399, 322285), (645, 199367), (665, 193371), (817, 157395), (903, 142405), (1499, 85785), (1505, 85443), (1995, 64457), (2451, 52465), (4085, 31479), (4497, 28595), (4515, 28481), (5719, 22485), (7495, 17157), (10493, 12255)]