20128320

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:293

約数の個数: 168

約数和(自身を含む): 71917560

約数和(自身を除く): 51789240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 64, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 192, 232, 240, 241, 261, 288, 290, 320, 348, 360, 435, 464, 480, 482, 522, 576, 580, 696, 720, 723, 870, 928, 960, 964, 1044, 1160, 1205, 1305, 1392, 1440, 1446, 1740, 1856, 1928, 2088, 2169, 2320, 2410, 2610, 2784, 2880, 2892, 3480, 3615, 3856, 4176, 4338, 4640, 4820, 5220, 5568, 5784, 6960, 6989, 7230, 7712, 8352, 8676, 9280, 9640, 10440, 10845, 11568, 13920, 13978, 14460, 15424, 16704, 17352, 19280, 20880, 20967, 21690, 23136, 27840, 27956, 28920, 34704, 34945, 38560, 41760, 41934, 43380, 46272, 55912, 57840, 62901, 69408, 69890, 77120, 83520, 83868, 86760, 104835, 111824, 115680, 125802, 138816, 139780, 167736, 173520, 209670, 223648, 231360, 251604, 279560, 314505, 335472, 347040, 419340, 447296, 503208, 559120, 629010, 670944, 694080, 838680, 1006416, 1118240, 1258020, 1341888, 1677360, 2012832, 2236480, 2516040, 3354720, 4025664, 5032080, 6709440, 10064160, 20128320]

約数ペア:

[(1, 20128320), (2, 10064160), (3, 6709440), (4, 5032080), (5, 4025664), (6, 3354720), (8, 2516040), (9, 2236480), (10, 2012832), (12, 1677360), (15, 1341888), (16, 1258020), (18, 1118240), (20, 1006416), (24, 838680), (29, 694080), (30, 670944), (32, 629010), (36, 559120), (40, 503208), (45, 447296), (48, 419340), (58, 347040), (60, 335472), (64, 314505), (72, 279560), (80, 251604), (87, 231360), (90, 223648), (96, 209670), (116, 173520), (120, 167736), (144, 139780), (145, 138816), (160, 125802), (174, 115680), (180, 111824), (192, 104835), (232, 86760), (240, 83868), (241, 83520), (261, 77120), (288, 69890), (290, 69408), (320, 62901), (348, 57840), (360, 55912), (435, 46272), (464, 43380), (480, 41934), (482, 41760), (522, 38560), (576, 34945), (580, 34704), (696, 28920), (720, 27956), (723, 27840), (870, 23136), (928, 21690), (960, 20967), (964, 20880), (1044, 19280), (1160, 17352), (1205, 16704), (1305, 15424), (1392, 14460), (1440, 13978), (1446, 13920), (1740, 11568), (1856, 10845), (1928, 10440), (2088, 9640), (2169, 9280), (2320, 8676), (2410, 8352), (2610, 7712), (2784, 7230), (2880, 6989), (2892, 6960), (3480, 5784), (3615, 5568), (3856, 5220), (4176, 4820), (4338, 4640)]