256875520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4561}}^1$

素因数の和:4597

約数の個数: 88

約数和(自身を含む): 672365808

約数和(自身を除く): 415490288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1024, 1280, 1408, 1760, 2560, 2816, 3520, 4561, 5120, 5632, 7040, 9122, 11264, 14080, 18244, 22805, 28160, 36488, 45610, 50171, 56320, 72976, 91220, 100342, 145952, 182440, 200684, 250855, 291904, 364880, 401368, 501710, 583808, 729760, 802736, 1003420, 1167616, 1459520, 1605472, 2006840, 2335232, 2919040, 3210944, 4013680, 4670464, 5838080, 6421888, 8027360, 11676160, 12843776, 16054720, 23352320, 25687552, 32109440, 51375104, 64218880, 128437760, 256875520]

約数ペア:

[(1, 256875520), (2, 128437760), (4, 64218880), (5, 51375104), (8, 32109440), (10, 25687552), (11, 23352320), (16, 16054720), (20, 12843776), (22, 11676160), (32, 8027360), (40, 6421888), (44, 5838080), (55, 4670464), (64, 4013680), (80, 3210944), (88, 2919040), (110, 2335232), (128, 2006840), (160, 1605472), (176, 1459520), (220, 1167616), (256, 1003420), (320, 802736), (352, 729760), (440, 583808), (512, 501710), (640, 401368), (704, 364880), (880, 291904), (1024, 250855), (1280, 200684), (1408, 182440), (1760, 145952), (2560, 100342), (2816, 91220), (3520, 72976), (4561, 56320), (5120, 50171), (5632, 45610), (7040, 36488), (9122, 28160), (11264, 22805), (14080, 18244)]