20479680

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:583

約数の個数: 168

約数和(自身を含む): 75998832

約数和(自身を除く): 55519152

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 360, 390, 416, 468, 480, 520, 547, 576, 585, 624, 720, 780, 832, 936, 960, 1040, 1094, 1170, 1248, 1440, 1560, 1641, 1872, 2080, 2188, 2340, 2496, 2735, 2880, 3120, 3282, 3744, 4160, 4376, 4680, 4923, 5470, 6240, 6564, 7111, 7488, 8205, 8752, 9360, 9846, 10940, 12480, 13128, 14222, 16410, 17504, 18720, 19692, 21333, 21880, 24615, 26256, 28444, 32820, 35008, 35555, 37440, 39384, 42666, 43760, 49230, 52512, 56888, 63999, 65640, 71110, 78768, 85332, 87520, 98460, 105024, 106665, 113776, 127998, 131280, 142220, 157536, 170664, 175040, 196920, 213330, 227552, 255996, 262560, 284440, 315072, 319995, 341328, 393840, 426660, 455104, 511992, 525120, 568880, 639990, 682656, 787680, 853320, 1023984, 1137760, 1279980, 1365312, 1575360, 1706640, 2047968, 2275520, 2559960, 3413280, 4095936, 5119920, 6826560, 10239840, 20479680]

約数ペア:

[(1, 20479680), (2, 10239840), (3, 6826560), (4, 5119920), (5, 4095936), (6, 3413280), (8, 2559960), (9, 2275520), (10, 2047968), (12, 1706640), (13, 1575360), (15, 1365312), (16, 1279980), (18, 1137760), (20, 1023984), (24, 853320), (26, 787680), (30, 682656), (32, 639990), (36, 568880), (39, 525120), (40, 511992), (45, 455104), (48, 426660), (52, 393840), (60, 341328), (64, 319995), (65, 315072), (72, 284440), (78, 262560), (80, 255996), (90, 227552), (96, 213330), (104, 196920), (117, 175040), (120, 170664), (130, 157536), (144, 142220), (156, 131280), (160, 127998), (180, 113776), (192, 106665), (195, 105024), (208, 98460), (234, 87520), (240, 85332), (260, 78768), (288, 71110), (312, 65640), (320, 63999), (360, 56888), (390, 52512), (416, 49230), (468, 43760), (480, 42666), (520, 39384), (547, 37440), (576, 35555), (585, 35008), (624, 32820), (720, 28444), (780, 26256), (832, 24615), (936, 21880), (960, 21333), (1040, 19692), (1094, 18720), (1170, 17504), (1248, 16410), (1440, 14222), (1560, 13128), (1641, 12480), (1872, 10940), (2080, 9846), (2188, 9360), (2340, 8752), (2496, 8205), (2735, 7488), (2880, 7111), (3120, 6564), (3282, 6240), (3744, 5470), (4160, 4923), (4376, 4680)]