About the Number

2123456640

2123456639 ← → 2123456641

2進数表記:1111110100100010110000010000000

漢数字表記:二十一億二千三百四十五万六千六百四十

素因数分解:

2 7 × 3 1 × 5 1 × 37 1 × 71 1 × 421 1

素因数の和:551
約数の個数: 256
約数和(自身を含む): 7066103040
約数和(自身を除く): 4942646400

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 71, 74, 80, 96, 111, 120, 128, 142, 148, 160, 185, 192, 213, 222, 240, 284, 296, 320, 355, 370, 384, 421, 426, 444, 480, 555, 568, 592, 640, 710, 740, 842, 852, 888, 960, 1065, 1110, 1136, 1184, 1263, 1420, 1480, 1684, 1704, 1776, 1920, 2105, 2130, 2220, 2272, 2368, 2526, 2627, 2840, 2960, 3368, 3408, 3552, 4210, 4260, 4440, 4544, 4736, 5052, 5254, 5680, 5920, 6315, 6736, 6816, 7104, 7881, 8420, 8520, 8880, 9088, 10104, 10508, 11360, 11840, 12630, 13135, 13472, 13632, 14208, 15577, 15762, 16840, 17040, 17760, 20208, 21016, 22720, 23680, 25260, 26270, 26944, 27264, 29891, 31154, 31524, 33680, 34080, 35520, 39405, 40416, 42032, 45440, 46731, 50520, 52540, 53888, 59782, 62308, 63048, 67360, 68160, 71040, 77885, 78810, 80832, 84064, 89673, 93462, 101040, 105080, 119564, 124616, 126096, 134720, 136320, 149455, 155770, 157620, 161664, 168128, 179346, 186924, 202080, 210160, 233655, 239128, 249232, 252192, 269440, 298910, 311540, 315240, 336256, 358692, 373848, 404160, 420320, 448365, 467310, 478256, 498464, 504384, 597820, 623080, 630480, 717384, 747696, 808320, 840640, 896730, 934620, 956512, 996928, 1008768, 1105967, 1195640, 1246160, 1260960, 1434768, 1495392, 1681280, 1793460, 1869240, 1913024, 1993856, 2211934, 2391280, 2492320, 2521920, 2869536, 2990784, 3317901, 3586920, 3738480, 3826048, 4423868, 4782560, 4984640, 5043840, 5529835, 5739072, 5981568, 6635802, 7173840, 7476960, 8847736, 9565120, 9969280, 11059670, 11478144, 13271604, 14347680, 14953920, 16589505, 17695472, 19130240, 22119340, 26543208, 28695360, 29907840, 33179010, 35390944, 44238680, 53086416, 57390720, 66358020, 70781888, 88477360, 106172832, 132716040, 141563776, 176954720, 212345664, 265432080, 353909440, 424691328, 530864160, 707818880, 1061728320, 2123456640]

約数ペア:
[(1, 2123456640), (2, 1061728320), (3, 707818880), (4, 530864160), (5, 424691328), (6, 353909440), (8, 265432080), (10, 212345664), (12, 176954720), (15, 141563776), (16, 132716040), (20, 106172832), (24, 88477360), (30, 70781888), (32, 66358020), (37, 57390720), (40, 53086416), (48, 44238680), (60, 35390944), (64, 33179010), (71, 29907840), (74, 28695360), (80, 26543208), (96, 22119340), (111, 19130240), (120, 17695472), (128, 16589505), (142, 14953920), (148, 14347680), (160, 13271604), (185, 11478144), (192, 11059670), (213, 9969280), (222, 9565120), (240, 8847736), (284, 7476960), (296, 7173840), (320, 6635802), (355, 5981568), (370, 5739072), (384, 5529835), (421, 5043840), (426, 4984640), (444, 4782560), (480, 4423868), (555, 3826048), (568, 3738480), (592, 3586920), (640, 3317901), (710, 2990784), (740, 2869536), (842, 2521920), (852, 2492320), (888, 2391280), (960, 2211934), (1065, 1993856), (1110, 1913024), (1136, 1869240), (1184, 1793460), (1263, 1681280), (1420, 1495392), (1480, 1434768), (1684, 1260960), (1704, 1246160), (1776, 1195640), (1920, 1105967), (2105, 1008768), (2130, 996928), (2220, 956512), (2272, 934620), (2368, 896730), (2526, 840640), (2627, 808320), (2840, 747696), (2960, 717384), (3368, 630480), (3408, 623080), (3552, 597820), (4210, 504384), (4260, 498464), (4440, 478256), (4544, 467310), (4736, 448365), (5052, 420320), (5254, 404160), (5680, 373848), (5920, 358692), (6315, 336256), (6736, 315240), (6816, 311540), (7104, 298910), (7881, 269440), (8420, 252192), (8520, 249232), (8880, 239128), (9088, 233655), (10104, 210160), (10508, 202080), (11360, 186924), (11840, 179346), (12630, 168128), (13135, 161664), (13472, 157620), (13632, 155770), (14208, 149455), (15577, 136320), (15762, 134720), (16840, 126096), (17040, 124616), (17760, 119564), (20208, 105080), (21016, 101040), (22720, 93462), (23680, 89673), (25260, 84064), (26270, 80832), (26944, 78810), (27264, 77885), (29891, 71040), (31154, 68160), (31524, 67360), (33680, 63048), (34080, 62308), (35520, 59782), (39405, 53888), (40416, 52540), (42032, 50520), (45440, 46731)]

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