217511280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:548

約数の個数: 240

約数和(自身を含む): 844945920

約数和(自身を除く): 627434640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 103, 105, 112, 120, 126, 140, 144, 168, 180, 206, 210, 240, 252, 280, 309, 315, 336, 360, 412, 419, 420, 504, 515, 560, 618, 630, 720, 721, 824, 838, 840, 927, 1008, 1030, 1236, 1257, 1260, 1442, 1545, 1648, 1676, 1680, 1854, 2060, 2095, 2163, 2472, 2514, 2520, 2884, 2933, 3090, 3352, 3605, 3708, 3771, 4120, 4190, 4326, 4635, 4944, 5028, 5040, 5768, 5866, 6180, 6285, 6489, 6704, 7210, 7416, 7542, 8240, 8380, 8652, 8799, 9270, 10056, 10815, 11536, 11732, 12360, 12570, 12978, 14420, 14665, 14832, 15084, 16760, 17304, 17598, 18540, 18855, 20112, 21630, 23464, 24720, 25140, 25956, 26397, 28840, 29330, 30168, 32445, 33520, 34608, 35196, 37080, 37710, 43157, 43260, 43995, 46928, 50280, 51912, 52794, 57680, 58660, 60336, 64890, 70392, 74160, 75420, 86314, 86520, 87990, 100560, 103824, 105588, 117320, 129471, 129780, 131985, 140784, 150840, 172628, 173040, 175980, 211176, 215785, 234640, 258942, 259560, 263970, 301680, 302099, 345256, 351960, 388413, 422352, 431570, 517884, 519120, 527940, 604198, 647355, 690512, 703920, 776826, 863140, 906297, 1035768, 1055880, 1208396, 1294710, 1510495, 1553652, 1726280, 1812594, 1942065, 2071536, 2111760, 2416792, 2589420, 2718891, 3020990, 3107304, 3452560, 3625188, 3884130, 4531485, 4833584, 5178840, 5437782, 6041980, 6214608, 7250376, 7768260, 9062970, 10357680, 10875564, 12083960, 13594455, 14500752, 15536520, 18125940, 21751128, 24167920, 27188910, 31073040, 36251880, 43502256, 54377820, 72503760, 108755640, 217511280]

約数ペア:

[(1, 217511280), (2, 108755640), (3, 72503760), (4, 54377820), (5, 43502256), (6, 36251880), (7, 31073040), (8, 27188910), (9, 24167920), (10, 21751128), (12, 18125940), (14, 15536520), (15, 14500752), (16, 13594455), (18, 12083960), (20, 10875564), (21, 10357680), (24, 9062970), (28, 7768260), (30, 7250376), (35, 6214608), (36, 6041980), (40, 5437782), (42, 5178840), (45, 4833584), (48, 4531485), (56, 3884130), (60, 3625188), (63, 3452560), (70, 3107304), (72, 3020990), (80, 2718891), (84, 2589420), (90, 2416792), (103, 2111760), (105, 2071536), (112, 1942065), (120, 1812594), (126, 1726280), (140, 1553652), (144, 1510495), (168, 1294710), (180, 1208396), (206, 1055880), (210, 1035768), (240, 906297), (252, 863140), (280, 776826), (309, 703920), (315, 690512), (336, 647355), (360, 604198), (412, 527940), (419, 519120), (420, 517884), (504, 431570), (515, 422352), (560, 388413), (618, 351960), (630, 345256), (720, 302099), (721, 301680), (824, 263970), (838, 259560), (840, 258942), (927, 234640), (1008, 215785), (1030, 211176), (1236, 175980), (1257, 173040), (1260, 172628), (1442, 150840), (1545, 140784), (1648, 131985), (1676, 129780), (1680, 129471), (1854, 117320), (2060, 105588), (2095, 103824), (2163, 100560), (2472, 87990), (2514, 86520), (2520, 86314), (2884, 75420), (2933, 74160), (3090, 70392), (3352, 64890), (3605, 60336), (3708, 58660), (3771, 57680), (4120, 52794), (4190, 51912), (4326, 50280), (4635, 46928), (4944, 43995), (5028, 43260), (5040, 43157), (5768, 37710), (5866, 37080), (6180, 35196), (6285, 34608), (6489, 33520), (6704, 32445), (7210, 30168), (7416, 29330), (7542, 28840), (8240, 26397), (8380, 25956), (8652, 25140), (8799, 24720), (9270, 23464), (10056, 21630), (10815, 20112), (11536, 18855), (11732, 18540), (12360, 17598), (12570, 17304), (12978, 16760), (14420, 15084), (14665, 14832)]