21394381505280

素因数分解:

$2^8\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{5669}}^1$

素因数の和:6385

約数の個数: 864

約数和(自身を含む): 82189254389760

約数和(自身を除く): 60794872884480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 49, 56, 60, 62, 64, 70, 80, 84, 93, 96, 98, 105, 112, 120, 124, 128, 140, 147, 155, 160, 168, 186, 192, 196, 210, 217, 224, 240, 245, 248, 256, 280, 294, 310, 320, 336, 372, 384, 392, 420, 434, 448, 465, 480, 490, 496, 560, 588, 620, 640, 647, 651, 672, 735, 744, 768, 784, 840, 868, 896, 930, 960, 980, 992, 1085, 1120, 1176, 1240, 1280, 1294, 1302, 1344, 1470, 1488, 1519, 1568, 1680, 1736, 1792, 1860, 1920, 1941, 1960, 1984, 2170, 2240, 2352, 2480, 2588, 2604, 2688, 2940, 2976, 3038, 3136, 3235, 3255, 3360, 3472, 3720, 3840, 3882, 3920, 3968, 4340, 4480, 4529, 4557, 4704, 4960, 5176, 5208, 5376, 5669, 5880, 5952, 6076, 6272, 6470, 6510, 6720, 6944, 7440, 7595, 7764, 7840, 7936, 8680, 8960, 9058, 9114, 9408, 9705, 9920, 10352, 10416, 11338, 11760, 11904, 12152, 12544, 12940, 13020, 13440, 13587, 13888, 14880, 15190, 15528, 15680, 17007, 17360, 18116, 18228, 18816, 19410, 19840, 20057, 20704, 20832, 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約数ペア:

[(1, 21394381505280), (2, 10697190752640), (3, 7131460501760), (4, 5348595376320), (5, 4278876301056), (6, 3565730250880), (7, 3056340215040), (8, 2674297688160), (10, 2139438150528), (12, 1782865125440), (14, 1528170107520), (15, 1426292100352), (16, 1337148844080), (20, 1069719075264), (21, 1018780071680), (24, 891432562720), (28, 764085053760), (30, 713146050176), (31, 690141338880), (32, 668574422040), (35, 611268043008), (40, 534859537632), (42, 509390035840), (48, 445716281360), (49, 436620030720), (56, 382042526880), (60, 356573025088), (62, 345070669440), (64, 334287211020), (70, 305634021504), (80, 267429768816), (84, 254695017920), (93, 230047112960), (96, 222858140680), (98, 218310015360), (105, 203756014336), (112, 191021263440), (120, 178286512544), (124, 172535334720), (128, 167143605510), (140, 152817010752), (147, 145540010240), (155, 138028267776), (160, 133714884408), (168, 127347508960), (186, 115023556480), (192, 111429070340), (196, 109155007680), (210, 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(833343, 25672960), (842394, 25397120), (869568, 24603460), (878695, 24347904), (907040, 23587032), (951090, 22494592), (952392, 22463840), (962736, 22222480), (972160, 22007058), (982793, 21768960), (1014496, 21088680), (1054434, 20289920), (1086960, 19682768), (1088448, 19655860), (1111124, 19254720), (1123192, 19047840), (1159424, 18452595), (1166592, 18339215), (1190490, 17971072), (1203420, 17777984), (1230173, 17391360), (1242240, 17222422), (1268120, 16870944), (1269856, 16847880), (1283648, 16666860), (1360560, 15724688), (1388905, 15403776), (1403990, 15238272), (1405912, 15217440), (1449280, 14762076), (1451264, 14741895), (1458240, 14671372), (1521744, 14059120), (1587320, 13478304), (1604560, 13333488), (1666686, 12836480), (1684788, 12698560), (1739136, 12301730), (1757390, 12173952), (1814080, 11793516), (1902180, 11247296), (1904784, 11231920), (1925472, 11111240), (1944320, 11003529), (1965586, 10884480), (2028992, 10544340), (2105985, 10158848), (2108868, 10144960), (2173920, 9841384), (2176896, 9827930), (2222248, 9627360), (2246384, 9523920), (2380980, 8985536), (2406840, 8888992), (2460346, 8695680), (2484480, 8611211), (2536240, 8435472), (2539712, 8423940), (2567296, 8333430), (2636085, 8115968), (2721120, 7862344), (2777810, 7701888), (2807980, 7619136), (2811824, 7608720), (2898560, 7381038), (2916480, 7335686), (2948379, 7256320), (3043488, 7029560), (3174640, 6739152), (3209120, 6666744), (3333372, 6418240), (3369576, 6349280), (3478272, 6150865), (3514780, 6086976), (3628160, 5896758), (3667843, 5832960), (3690519, 5797120), (3804360, 5623648), (3809568, 5615960), (3850944, 5555620), (3931172, 5442240), (4057984, 5272170), (4166715, 5134592), (4211970, 5079424), (4217736, 5072480), (4347840, 4920692), (4353792, 4913965), (4444496, 4813680), (4492768, 4761960)]