131996928

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:640

約数の個数: 144

約数和(自身を含む): 411547136

約数和(自身を除く): 279550208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 43, 48, 56, 64, 84, 86, 96, 112, 128, 129, 168, 172, 192, 224, 256, 258, 301, 336, 344, 384, 448, 516, 571, 602, 672, 688, 768, 896, 903, 1032, 1142, 1204, 1344, 1376, 1713, 1792, 1806, 2064, 2284, 2408, 2688, 2752, 3426, 3612, 3997, 4128, 4568, 4816, 5376, 5504, 6852, 7224, 7994, 8256, 9136, 9632, 11008, 11991, 13704, 14448, 15988, 16512, 18272, 19264, 23982, 24553, 27408, 28896, 31976, 33024, 36544, 38528, 47964, 49106, 54816, 57792, 63952, 73088, 73659, 77056, 95928, 98212, 109632, 115584, 127904, 146176, 147318, 171871, 191856, 196424, 219264, 231168, 255808, 294636, 343742, 383712, 392848, 438528, 511616, 515613, 589272, 687484, 767424, 785696, 1023232, 1031226, 1178544, 1374968, 1534848, 1571392, 2062452, 2357088, 2749936, 3069696, 3142784, 4124904, 4714176, 5499872, 6285568, 8249808, 9428352, 10999744, 16499616, 18856704, 21999488, 32999232, 43998976, 65998464, 131996928]

約数ペア:

[(1, 131996928), (2, 65998464), (3, 43998976), (4, 32999232), (6, 21999488), (7, 18856704), (8, 16499616), (12, 10999744), (14, 9428352), (16, 8249808), (21, 6285568), (24, 5499872), (28, 4714176), (32, 4124904), (42, 3142784), (43, 3069696), (48, 2749936), (56, 2357088), (64, 2062452), (84, 1571392), (86, 1534848), (96, 1374968), (112, 1178544), (128, 1031226), (129, 1023232), (168, 785696), (172, 767424), (192, 687484), (224, 589272), (256, 515613), (258, 511616), (301, 438528), (336, 392848), (344, 383712), (384, 343742), (448, 294636), (516, 255808), (571, 231168), (602, 219264), (672, 196424), (688, 191856), (768, 171871), (896, 147318), (903, 146176), (1032, 127904), (1142, 115584), (1204, 109632), (1344, 98212), (1376, 95928), (1713, 77056), (1792, 73659), (1806, 73088), (2064, 63952), (2284, 57792), (2408, 54816), (2688, 49106), (2752, 47964), (3426, 38528), (3612, 36544), (3997, 33024), (4128, 31976), (4568, 28896), (4816, 27408), (5376, 24553), (5504, 23982), (6852, 19264), (7224, 18272), (7994, 16512), (8256, 15988), (9136, 14448), (9632, 13704), (11008, 11991)]