311949820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{171401}}^1$

素因数の和:171430

約数の個数: 48

約数和(自身を含む): 806275008

約数和(自身を除く): 494325188

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 171401, 342802, 685604, 857005, 1199807, 1714010, 2228213, 2399614, 3428020, 4456426, 4799228, 5999035, 8912852, 11141065, 11998070, 15597491, 22282130, 23996140, 31194982, 44564260, 62389964, 77987455, 155974910, 311949820]

約数ペア:

[(1, 311949820), (2, 155974910), (4, 77987455), (5, 62389964), (7, 44564260), (10, 31194982), (13, 23996140), (14, 22282130), (20, 15597491), (26, 11998070), (28, 11141065), (35, 8912852), (52, 5999035), (65, 4799228), (70, 4456426), (91, 3428020), (130, 2399614), (140, 2228213), (182, 1714010), (260, 1199807), (364, 857005), (455, 685604), (910, 342802), (1820, 171401)]