391326488

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1216

約数の個数: 64

約数和(自身を含む): 864188160

約数和(自身を除く): 472861672

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 163, 172, 301, 326, 344, 602, 652, 997, 1141, 1204, 1304, 1994, 2282, 2408, 3988, 4564, 6979, 7009, 7976, 9128, 13958, 14018, 27916, 28036, 42871, 49063, 55832, 56072, 85742, 98126, 162511, 171484, 196252, 300097, 325022, 342968, 392504, 600194, 650044, 1137577, 1200388, 1300088, 2275154, 2400776, 4550308, 6987973, 9100616, 13975946, 27951892, 48915811, 55903784, 97831622, 195663244, 391326488]

約数ペア:

[(1, 391326488), (2, 195663244), (4, 97831622), (7, 55903784), (8, 48915811), (14, 27951892), (28, 13975946), (43, 9100616), (56, 6987973), (86, 4550308), (163, 2400776), (172, 2275154), (301, 1300088), (326, 1200388), (344, 1137577), (602, 650044), (652, 600194), (997, 392504), (1141, 342968), (1204, 325022), (1304, 300097), (1994, 196252), (2282, 171484), (2408, 162511), (3988, 98126), (4564, 85742), (6979, 56072), (7009, 55832), (7976, 49063), (9128, 42871), (13958, 28036), (14018, 27916)]