205217985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{941}}^1$

素因数の和:1054

約数の個数: 64

約数和(自身を含む): 393560064

約数和(自身を除く): 188342079

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 67, 93, 105, 155, 201, 217, 335, 465, 469, 651, 941, 1005, 1085, 1407, 2077, 2345, 2823, 3255, 4705, 6231, 6587, 7035, 10385, 14115, 14539, 19761, 29171, 31155, 32935, 43617, 63047, 72695, 87513, 98805, 145855, 189141, 204197, 218085, 315235, 437565, 441329, 612591, 945705, 1020985, 1323987, 1954457, 2206645, 3062955, 5863371, 6619935, 9772285, 13681199, 29316855, 41043597, 68405995, 205217985]

約数ペア:

[(1, 205217985), (3, 68405995), (5, 41043597), (7, 29316855), (15, 13681199), (21, 9772285), (31, 6619935), (35, 5863371), (67, 3062955), (93, 2206645), (105, 1954457), (155, 1323987), (201, 1020985), (217, 945705), (335, 612591), (465, 441329), (469, 437565), (651, 315235), (941, 218085), (1005, 204197), (1085, 189141), (1407, 145855), (2077, 98805), (2345, 87513), (2823, 72695), (3255, 63047), (4705, 43617), (6231, 32935), (6587, 31155), (7035, 29171), (10385, 19761), (14115, 14539)]