19867680

素因数分解:

$2^5\times 3^5\times 5^1\times 7^1\times {\mathrm{73}}^1$

素因数の和:110

約数の個数: 288

約数和(自身を含む): 81454464

約数和(自身を除く): 61586784

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 73, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 146, 160, 162, 168, 180, 189, 210, 216, 219, 224, 240, 243, 252, 270, 280, 288, 292, 315, 324, 336, 360, 365, 378, 405, 420, 432, 438, 480, 486, 504, 511, 540, 560, 567, 584, 630, 648, 657, 672, 720, 730, 756, 810, 840, 864, 876, 945, 972, 1008, 1022, 1080, 1095, 1120, 1134, 1168, 1215, 1260, 1296, 1314, 1440, 1460, 1512, 1533, 1620, 1680, 1701, 1752, 1890, 1944, 1971, 2016, 2044, 2160, 2190, 2268, 2336, 2430, 2520, 2555, 2592, 2628, 2835, 2920, 3024, 3066, 3240, 3285, 3360, 3402, 3504, 3780, 3888, 3942, 4088, 4320, 4380, 4536, 4599, 4860, 5040, 5110, 5256, 5670, 5840, 5913, 6048, 6132, 6480, 6570, 6804, 7008, 7560, 7665, 7776, 7884, 8176, 8505, 8760, 9072, 9198, 9720, 9855, 10080, 10220, 10512, 11340, 11680, 11826, 12264, 12960, 13140, 13608, 13797, 15120, 15330, 15768, 16352, 17010, 17520, 17739, 18144, 18396, 19440, 19710, 20440, 21024, 22680, 22995, 23652, 24528, 26280, 27216, 27594, 29565, 30240, 30660, 31536, 34020, 35040, 35478, 36792, 38880, 39420, 40880, 41391, 45360, 45990, 47304, 49056, 52560, 54432, 55188, 59130, 61320, 63072, 68040, 68985, 70956, 73584, 78840, 81760, 82782, 88695, 90720, 91980, 94608, 105120, 110376, 118260, 122640, 124173, 136080, 137970, 141912, 147168, 157680, 165564, 177390, 183960, 189216, 206955, 220752, 236520, 245280, 248346, 272160, 275940, 283824, 315360, 331128, 354780, 367920, 413910, 441504, 473040, 496692, 551880, 567648, 620865, 662256, 709560, 735840, 827820, 946080, 993384, 1103760, 1241730, 1324512, 1419120, 1655640, 1986768, 2207520, 2483460, 2838240, 3311280, 3973536, 4966920, 6622560, 9933840, 19867680]

約数ペア:

[(1, 19867680), (2, 9933840), (3, 6622560), (4, 4966920), (5, 3973536), (6, 3311280), (7, 2838240), (8, 2483460), (9, 2207520), (10, 1986768), (12, 1655640), (14, 1419120), (15, 1324512), (16, 1241730), (18, 1103760), (20, 993384), (21, 946080), (24, 827820), (27, 735840), (28, 709560), (30, 662256), (32, 620865), (35, 567648), (36, 551880), (40, 496692), (42, 473040), (45, 441504), (48, 413910), (54, 367920), (56, 354780), (60, 331128), (63, 315360), (70, 283824), (72, 275940), (73, 272160), (80, 248346), (81, 245280), (84, 236520), (90, 220752), (96, 206955), (105, 189216), (108, 183960), (112, 177390), (120, 165564), (126, 157680), (135, 147168), (140, 141912), (144, 137970), (146, 136080), (160, 124173), (162, 122640), (168, 118260), (180, 110376), (189, 105120), (210, 94608), (216, 91980), (219, 90720), (224, 88695), (240, 82782), (243, 81760), (252, 78840), (270, 73584), (280, 70956), (288, 68985), (292, 68040), (315, 63072), (324, 61320), (336, 59130), (360, 55188), (365, 54432), (378, 52560), (405, 49056), (420, 47304), (432, 45990), (438, 45360), (480, 41391), (486, 40880), (504, 39420), (511, 38880), (540, 36792), (560, 35478), (567, 35040), (584, 34020), (630, 31536), (648, 30660), (657, 30240), (672, 29565), (720, 27594), (730, 27216), (756, 26280), (810, 24528), (840, 23652), (864, 22995), (876, 22680), (945, 21024), (972, 20440), (1008, 19710), (1022, 19440), (1080, 18396), (1095, 18144), (1120, 17739), (1134, 17520), (1168, 17010), (1215, 16352), (1260, 15768), (1296, 15330), (1314, 15120), (1440, 13797), (1460, 13608), (1512, 13140), (1533, 12960), (1620, 12264), (1680, 11826), (1701, 11680), (1752, 11340), (1890, 10512), (1944, 10220), (1971, 10080), (2016, 9855), (2044, 9720), (2160, 9198), (2190, 9072), (2268, 8760), (2336, 8505), (2430, 8176), (2520, 7884), (2555, 7776), (2592, 7665), (2628, 7560), (2835, 7008), (2920, 6804), (3024, 6570), (3066, 6480), (3240, 6132), (3285, 6048), (3360, 5913), (3402, 5840), (3504, 5670), (3780, 5256), (3888, 5110), (3942, 5040), (4088, 4860), (4320, 4599), (4380, 4536)]