289450720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^2$

素因数の和:193

約数の個数: 144

約数和(自身を含む): 771700608

約数和(自身を除く): 482249888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 67, 80, 104, 124, 130, 134, 155, 160, 208, 248, 260, 268, 310, 335, 403, 416, 496, 520, 536, 620, 670, 806, 871, 992, 1040, 1072, 1240, 1340, 1612, 1742, 2015, 2077, 2080, 2144, 2480, 2680, 3224, 3484, 4030, 4154, 4355, 4489, 4960, 5360, 6448, 6968, 8060, 8308, 8710, 8978, 10385, 10720, 12896, 13936, 16120, 16616, 17420, 17956, 20770, 22445, 27001, 27872, 32240, 33232, 34840, 35912, 41540, 44890, 54002, 58357, 64480, 66464, 69680, 71824, 83080, 89780, 108004, 116714, 135005, 139159, 139360, 143648, 166160, 179560, 216008, 233428, 270010, 278318, 291785, 332320, 359120, 432016, 466856, 540020, 556636, 583570, 695795, 718240, 864032, 933712, 1080040, 1113272, 1167140, 1391590, 1809067, 1867424, 2160080, 2226544, 2334280, 2783180, 3618134, 4320160, 4453088, 4668560, 5566360, 7236268, 9045335, 9337120, 11132720, 14472536, 18090670, 22265440, 28945072, 36181340, 57890144, 72362680, 144725360, 289450720]

約数ペア:

[(1, 289450720), (2, 144725360), (4, 72362680), (5, 57890144), (8, 36181340), (10, 28945072), (13, 22265440), (16, 18090670), (20, 14472536), (26, 11132720), (31, 9337120), (32, 9045335), (40, 7236268), (52, 5566360), (62, 4668560), (65, 4453088), (67, 4320160), (80, 3618134), (104, 2783180), (124, 2334280), (130, 2226544), (134, 2160080), (155, 1867424), (160, 1809067), (208, 1391590), (248, 1167140), (260, 1113272), (268, 1080040), (310, 933712), (335, 864032), (403, 718240), (416, 695795), (496, 583570), (520, 556636), (536, 540020), (620, 466856), (670, 432016), (806, 359120), (871, 332320), (992, 291785), (1040, 278318), (1072, 270010), (1240, 233428), (1340, 216008), (1612, 179560), (1742, 166160), (2015, 143648), (2077, 139360), (2080, 139159), (2144, 135005), (2480, 116714), (2680, 108004), (3224, 89780), (3484, 83080), (4030, 71824), (4154, 69680), (4355, 66464), (4489, 64480), (4960, 58357), (5360, 54002), (6448, 44890), (6968, 41540), (8060, 35912), (8308, 34840), (8710, 33232), (8978, 32240), (10385, 27872), (10720, 27001), (12896, 22445), (13936, 20770), (16120, 17956), (16616, 17420)]