256297216

素因数分解:

$2^8\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1607}}^1$

素因数の和:1719

約数の個数: 72

約数和(自身を含む): 591615360

約数和(自身を除く): 335318144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 128, 178, 224, 256, 356, 448, 623, 712, 896, 1246, 1424, 1607, 1792, 2492, 2848, 3214, 4984, 5696, 6428, 9968, 11249, 11392, 12856, 19936, 22498, 22784, 25712, 39872, 44996, 51424, 79744, 89992, 102848, 143023, 159488, 179984, 205696, 286046, 359968, 411392, 572092, 719936, 1001161, 1144184, 1439872, 2002322, 2288368, 2879744, 4004644, 4576736, 8009288, 9153472, 16018576, 18306944, 32037152, 36613888, 64074304, 128148608, 256297216]

約数ペア:

[(1, 256297216), (2, 128148608), (4, 64074304), (7, 36613888), (8, 32037152), (14, 18306944), (16, 16018576), (28, 9153472), (32, 8009288), (56, 4576736), (64, 4004644), (89, 2879744), (112, 2288368), (128, 2002322), (178, 1439872), (224, 1144184), (256, 1001161), (356, 719936), (448, 572092), (623, 411392), (712, 359968), (896, 286046), (1246, 205696), (1424, 179984), (1607, 159488), (1792, 143023), (2492, 102848), (2848, 89992), (3214, 79744), (4984, 51424), (5696, 44996), (6428, 39872), (9968, 25712), (11249, 22784), (11392, 22498), (12856, 19936)]