289552520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1\times {\mathrm{641}}^1$

素因数の和:1166

約数の個数: 64

約数和(自身を含む): 682266240

約数和(自身を除く): 392713720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 491, 641, 920, 982, 1282, 1964, 2455, 2564, 3205, 3928, 4910, 5128, 6410, 9820, 11293, 12820, 14743, 19640, 22586, 25640, 29486, 45172, 56465, 58972, 73715, 90344, 112930, 117944, 147430, 225860, 294860, 314731, 451720, 589720, 629462, 1258924, 1573655, 2517848, 3147310, 6294620, 7238813, 12589240, 14477626, 28955252, 36194065, 57910504, 72388130, 144776260, 289552520]

約数ペア:

[(1, 289552520), (2, 144776260), (4, 72388130), (5, 57910504), (8, 36194065), (10, 28955252), (20, 14477626), (23, 12589240), (40, 7238813), (46, 6294620), (92, 3147310), (115, 2517848), (184, 1573655), (230, 1258924), (460, 629462), (491, 589720), (641, 451720), (920, 314731), (982, 294860), (1282, 225860), (1964, 147430), (2455, 117944), (2564, 112930), (3205, 90344), (3928, 73715), (4910, 58972), (5128, 56465), (6410, 45172), (9820, 29486), (11293, 25640), (12820, 22586), (14743, 19640)]