21353280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 224

約数和(自身を含む): 76809600

約数和(自身を除く): 55456320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 29, 30, 32, 39, 40, 48, 52, 58, 59, 60, 64, 65, 78, 80, 87, 96, 104, 116, 118, 120, 130, 145, 156, 160, 174, 177, 192, 195, 208, 232, 236, 240, 260, 290, 295, 312, 320, 348, 354, 377, 390, 416, 435, 464, 472, 480, 520, 580, 590, 624, 696, 708, 754, 767, 780, 832, 870, 885, 928, 944, 960, 1040, 1131, 1160, 1180, 1248, 1392, 1416, 1508, 1534, 1560, 1711, 1740, 1770, 1856, 1885, 1888, 2080, 2262, 2301, 2320, 2360, 2496, 2784, 2832, 3016, 3068, 3120, 3422, 3480, 3540, 3770, 3776, 3835, 4160, 4524, 4602, 4640, 4720, 5133, 5568, 5655, 5664, 6032, 6136, 6240, 6844, 6960, 7080, 7540, 7670, 8555, 9048, 9204, 9280, 9440, 10266, 11310, 11328, 11505, 12064, 12272, 12480, 13688, 13920, 14160, 15080, 15340, 17110, 18096, 18408, 18880, 20532, 22243, 22620, 23010, 24128, 24544, 25665, 27376, 27840, 28320, 30160, 30680, 34220, 36192, 36816, 41064, 44486, 45240, 46020, 49088, 51330, 54752, 56640, 60320, 61360, 66729, 68440, 72384, 73632, 82128, 88972, 90480, 92040, 102660, 109504, 111215, 120640, 122720, 133458, 136880, 147264, 164256, 177944, 180960, 184080, 205320, 222430, 245440, 266916, 273760, 328512, 333645, 355888, 361920, 368160, 410640, 444860, 533832, 547520, 667290, 711776, 736320, 821280, 889720, 1067664, 1334580, 1423552, 1642560, 1779440, 2135328, 2669160, 3558880, 4270656, 5338320, 7117760, 10676640, 21353280]

約数ペア:

[(1, 21353280), (2, 10676640), (3, 7117760), (4, 5338320), (5, 4270656), (6, 3558880), (8, 2669160), (10, 2135328), (12, 1779440), (13, 1642560), (15, 1423552), (16, 1334580), (20, 1067664), (24, 889720), (26, 821280), (29, 736320), (30, 711776), (32, 667290), (39, 547520), (40, 533832), (48, 444860), (52, 410640), (58, 368160), (59, 361920), (60, 355888), (64, 333645), (65, 328512), (78, 273760), (80, 266916), (87, 245440), (96, 222430), (104, 205320), (116, 184080), (118, 180960), (120, 177944), (130, 164256), (145, 147264), (156, 136880), (160, 133458), (174, 122720), (177, 120640), (192, 111215), (195, 109504), (208, 102660), (232, 92040), (236, 90480), (240, 88972), (260, 82128), (290, 73632), (295, 72384), (312, 68440), (320, 66729), (348, 61360), (354, 60320), (377, 56640), (390, 54752), (416, 51330), (435, 49088), (464, 46020), (472, 45240), (480, 44486), (520, 41064), (580, 36816), (590, 36192), (624, 34220), (696, 30680), (708, 30160), (754, 28320), (767, 27840), (780, 27376), (832, 25665), (870, 24544), (885, 24128), (928, 23010), (944, 22620), (960, 22243), (1040, 20532), (1131, 18880), (1160, 18408), (1180, 18096), (1248, 17110), (1392, 15340), (1416, 15080), (1508, 14160), (1534, 13920), (1560, 13688), (1711, 12480), (1740, 12272), (1770, 12064), (1856, 11505), (1885, 11328), (1888, 11310), (2080, 10266), (2262, 9440), (2301, 9280), (2320, 9204), (2360, 9048), (2496, 8555), (2784, 7670), (2832, 7540), (3016, 7080), (3068, 6960), (3120, 6844), (3422, 6240), (3480, 6136), (3540, 6032), (3770, 5664), (3776, 5655), (3835, 5568), (4160, 5133), (4524, 4720), (4602, 4640)]