427681280

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:288

約数の個数: 160

約数和(自身を含む): 1126052928

約数和(自身を除く): 698371648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 71, 80, 104, 128, 130, 142, 160, 181, 208, 256, 260, 284, 320, 355, 362, 416, 512, 520, 568, 640, 710, 724, 832, 905, 923, 1040, 1136, 1280, 1420, 1448, 1664, 1810, 1846, 2080, 2272, 2353, 2560, 2840, 2896, 3328, 3620, 3692, 4160, 4544, 4615, 4706, 5680, 5792, 6656, 7240, 7384, 8320, 9088, 9230, 9412, 11360, 11584, 11765, 12851, 14480, 14768, 16640, 18176, 18460, 18824, 22720, 23168, 23530, 25702, 28960, 29536, 33280, 36352, 36920, 37648, 45440, 46336, 47060, 51404, 57920, 59072, 64255, 73840, 75296, 90880, 92672, 94120, 102808, 115840, 118144, 128510, 147680, 150592, 167063, 181760, 188240, 205616, 231680, 236288, 257020, 295360, 301184, 334126, 376480, 411232, 463360, 472576, 514040, 590720, 602368, 668252, 752960, 822464, 835315, 1028080, 1181440, 1204736, 1336504, 1505920, 1644928, 1670630, 2056160, 2362880, 2673008, 3011840, 3289856, 3341260, 4112320, 5346016, 6023680, 6579712, 6682520, 8224640, 10692032, 13365040, 16449280, 21384064, 26730080, 32898560, 42768128, 53460160, 85536256, 106920320, 213840640, 427681280]

約数ペア:

[(1, 427681280), (2, 213840640), (4, 106920320), (5, 85536256), (8, 53460160), (10, 42768128), (13, 32898560), (16, 26730080), (20, 21384064), (26, 16449280), (32, 13365040), (40, 10692032), (52, 8224640), (64, 6682520), (65, 6579712), (71, 6023680), (80, 5346016), (104, 4112320), (128, 3341260), (130, 3289856), (142, 3011840), (160, 2673008), (181, 2362880), (208, 2056160), (256, 1670630), (260, 1644928), (284, 1505920), (320, 1336504), (355, 1204736), (362, 1181440), (416, 1028080), (512, 835315), (520, 822464), (568, 752960), (640, 668252), (710, 602368), (724, 590720), (832, 514040), (905, 472576), (923, 463360), (1040, 411232), (1136, 376480), (1280, 334126), (1420, 301184), (1448, 295360), (1664, 257020), (1810, 236288), (1846, 231680), (2080, 205616), (2272, 188240), (2353, 181760), (2560, 167063), (2840, 150592), (2896, 147680), (3328, 128510), (3620, 118144), (3692, 115840), (4160, 102808), (4544, 94120), (4615, 92672), (4706, 90880), (5680, 75296), (5792, 73840), (6656, 64255), (7240, 59072), (7384, 57920), (8320, 51404), (9088, 47060), (9230, 46336), (9412, 45440), (11360, 37648), (11584, 36920), (11765, 36352), (12851, 33280), (14480, 29536), (14768, 28960), (16640, 25702), (18176, 23530), (18460, 23168), (18824, 22720)]