216991320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:706

約数の個数: 256

約数和(自身を含む): 828334080

約数和(自身を除く): 611342760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 31, 35, 39, 40, 42, 52, 56, 60, 62, 65, 70, 78, 84, 91, 93, 104, 105, 120, 124, 130, 140, 155, 156, 168, 182, 186, 195, 210, 217, 248, 260, 273, 280, 310, 312, 364, 372, 390, 403, 420, 434, 455, 465, 520, 546, 620, 641, 651, 728, 744, 780, 806, 840, 868, 910, 930, 1085, 1092, 1209, 1240, 1282, 1302, 1365, 1560, 1612, 1736, 1820, 1860, 1923, 2015, 2170, 2184, 2418, 2564, 2604, 2730, 2821, 3205, 3224, 3255, 3640, 3720, 3846, 4030, 4340, 4487, 4836, 5128, 5208, 5460, 5642, 6045, 6410, 6510, 7692, 8060, 8333, 8463, 8680, 8974, 9615, 9672, 10920, 11284, 12090, 12820, 13020, 13461, 14105, 15384, 16120, 16666, 16926, 17948, 19230, 19871, 22435, 22568, 24180, 24999, 25640, 26040, 26922, 28210, 33332, 33852, 35896, 38460, 39742, 41665, 42315, 44870, 48360, 49998, 53844, 56420, 58331, 59613, 66664, 67305, 67704, 76920, 79484, 83330, 84630, 89740, 99355, 99996, 107688, 112840, 116662, 119226, 124995, 134610, 139097, 158968, 166660, 169260, 174993, 179480, 198710, 199992, 233324, 238452, 249990, 258323, 269220, 278194, 291655, 298065, 333320, 338520, 349986, 397420, 417291, 466648, 476904, 499980, 516646, 538440, 556388, 583310, 596130, 695485, 699972, 774969, 794840, 834582, 874965, 999960, 1033292, 1112776, 1166620, 1192260, 1291615, 1390970, 1399944, 1549938, 1669164, 1749930, 1808261, 2066584, 2086455, 2333240, 2384520, 2583230, 2781940, 3099876, 3338328, 3499860, 3616522, 3874845, 4172910, 5166460, 5424783, 5563880, 6199752, 6999720, 7233044, 7749690, 8345820, 9041305, 10332920, 10849566, 14466088, 15499380, 16691640, 18082610, 21699132, 27123915, 30998760, 36165220, 43398264, 54247830, 72330440, 108495660, 216991320]

約数ペア:

[(1, 216991320), (2, 108495660), (3, 72330440), (4, 54247830), (5, 43398264), (6, 36165220), (7, 30998760), (8, 27123915), (10, 21699132), (12, 18082610), (13, 16691640), (14, 15499380), (15, 14466088), (20, 10849566), (21, 10332920), (24, 9041305), (26, 8345820), (28, 7749690), (30, 7233044), (31, 6999720), (35, 6199752), (39, 5563880), (40, 5424783), (42, 5166460), (52, 4172910), (56, 3874845), (60, 3616522), (62, 3499860), (65, 3338328), (70, 3099876), (78, 2781940), (84, 2583230), (91, 2384520), (93, 2333240), (104, 2086455), (105, 2066584), (120, 1808261), (124, 1749930), (130, 1669164), (140, 1549938), (155, 1399944), (156, 1390970), (168, 1291615), (182, 1192260), (186, 1166620), (195, 1112776), (210, 1033292), (217, 999960), (248, 874965), (260, 834582), (273, 794840), (280, 774969), (310, 699972), (312, 695485), (364, 596130), (372, 583310), (390, 556388), (403, 538440), (420, 516646), (434, 499980), (455, 476904), (465, 466648), (520, 417291), (546, 397420), (620, 349986), (641, 338520), (651, 333320), (728, 298065), (744, 291655), (780, 278194), (806, 269220), (840, 258323), (868, 249990), (910, 238452), (930, 233324), (1085, 199992), (1092, 198710), (1209, 179480), (1240, 174993), (1282, 169260), (1302, 166660), (1365, 158968), (1560, 139097), (1612, 134610), (1736, 124995), (1820, 119226), (1860, 116662), (1923, 112840), (2015, 107688), (2170, 99996), (2184, 99355), (2418, 89740), (2564, 84630), (2604, 83330), (2730, 79484), (2821, 76920), (3205, 67704), (3224, 67305), (3255, 66664), (3640, 59613), (3720, 58331), (3846, 56420), (4030, 53844), (4340, 49998), (4487, 48360), (4836, 44870), (5128, 42315), (5208, 41665), (5460, 39742), (5642, 38460), (6045, 35896), (6410, 33852), (6510, 33332), (7692, 28210), (8060, 26922), (8333, 26040), (8463, 25640), (8680, 24999), (8974, 24180), (9615, 22568), (9672, 22435), (10920, 19871), (11284, 19230), (12090, 17948), (12820, 16926), (13020, 16666), (13461, 16120), (14105, 15384)]