21570120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:460

約数の個数: 192

約数和(自身を含む): 82555200

約数和(自身を除く): 60985080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 52, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 264, 286, 312, 330, 360, 390, 396, 419, 429, 440, 468, 495, 520, 572, 585, 660, 715, 780, 792, 838, 858, 936, 990, 1144, 1170, 1257, 1287, 1320, 1430, 1560, 1676, 1716, 1980, 2095, 2145, 2340, 2514, 2574, 2860, 3352, 3432, 3771, 3960, 4190, 4290, 4609, 4680, 5028, 5148, 5447, 5720, 6285, 6435, 7542, 8380, 8580, 9218, 10056, 10296, 10894, 12570, 12870, 13827, 15084, 16341, 16760, 17160, 18436, 18855, 21788, 23045, 25140, 25740, 27235, 27654, 30168, 32682, 36872, 37710, 41481, 43576, 46090, 49023, 50280, 51480, 54470, 55308, 59917, 65364, 69135, 75420, 81705, 82962, 92180, 98046, 108940, 110616, 119834, 130728, 138270, 150840, 163410, 165924, 179751, 184360, 196092, 207405, 217880, 239668, 245115, 276540, 299585, 326820, 331848, 359502, 392184, 414810, 479336, 490230, 539253, 553080, 599170, 653640, 719004, 829620, 898755, 980460, 1078506, 1198340, 1438008, 1659240, 1797510, 1960920, 2157012, 2396680, 2696265, 3595020, 4314024, 5392530, 7190040, 10785060, 21570120]

約数ペア:

[(1, 21570120), (2, 10785060), (3, 7190040), (4, 5392530), (5, 4314024), (6, 3595020), (8, 2696265), (9, 2396680), (10, 2157012), (11, 1960920), (12, 1797510), (13, 1659240), (15, 1438008), (18, 1198340), (20, 1078506), (22, 980460), (24, 898755), (26, 829620), (30, 719004), (33, 653640), (36, 599170), (39, 553080), (40, 539253), (44, 490230), (45, 479336), (52, 414810), (55, 392184), (60, 359502), (65, 331848), (66, 326820), (72, 299585), (78, 276540), (88, 245115), (90, 239668), (99, 217880), (104, 207405), (110, 196092), (117, 184360), (120, 179751), (130, 165924), (132, 163410), (143, 150840), (156, 138270), (165, 130728), (180, 119834), (195, 110616), (198, 108940), (220, 98046), (234, 92180), (260, 82962), (264, 81705), (286, 75420), (312, 69135), (330, 65364), (360, 59917), (390, 55308), (396, 54470), (419, 51480), (429, 50280), (440, 49023), (468, 46090), (495, 43576), (520, 41481), (572, 37710), (585, 36872), (660, 32682), (715, 30168), (780, 27654), (792, 27235), (838, 25740), (858, 25140), (936, 23045), (990, 21788), (1144, 18855), (1170, 18436), (1257, 17160), (1287, 16760), (1320, 16341), (1430, 15084), (1560, 13827), (1676, 12870), (1716, 12570), (1980, 10894), (2095, 10296), (2145, 10056), (2340, 9218), (2514, 8580), (2574, 8380), (2860, 7542), (3352, 6435), (3432, 6285), (3771, 5720), (3960, 5447), (4190, 5148), (4290, 5028), (4609, 4680)]