257391316

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{14431}}^1$

素因数の和:14469

約数の個数: 48

約数和(自身を含む): 565734400

約数和(自身を除く): 308343084

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 343, 364, 637, 686, 1274, 1372, 2548, 4459, 8918, 14431, 17836, 28862, 57724, 101017, 187603, 202034, 375206, 404068, 707119, 750412, 1313221, 1414238, 2626442, 2828476, 4949833, 5252884, 9192547, 9899666, 18385094, 19799332, 36770188, 64347829, 128695658, 257391316]

約数ペア:

[(1, 257391316), (2, 128695658), (4, 64347829), (7, 36770188), (13, 19799332), (14, 18385094), (26, 9899666), (28, 9192547), (49, 5252884), (52, 4949833), (91, 2828476), (98, 2626442), (182, 1414238), (196, 1313221), (343, 750412), (364, 707119), (637, 404068), (686, 375206), (1274, 202034), (1372, 187603), (2548, 101017), (4459, 57724), (8918, 28862), (14431, 17836)]