About the Number

388972080

388972079 ← → 388972081

2進数表記:10111001011110011111000110000

漢数字表記:三億八千八百九十七万二千八十

素因数分解:

2 4 × 3 2 × 5 1 × 7 1 × 71 1 × 1087 1

素因数の和:1184
約数の個数: 240
約数和(自身を含む): 1515331584
約数和(自身を除く): 1126359504

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, 71, 72, 80, 84, 90, 105, 112, 120, 126, 140, 142, 144, 168, 180, 210, 213, 240, 252, 280, 284, 315, 336, 355, 360, 420, 426, 497, 504, 560, 568, 630, 639, 710, 720, 840, 852, 994, 1008, 1065, 1087, 1136, 1260, 1278, 1420, 1491, 1680, 1704, 1988, 2130, 2174, 2485, 2520, 2556, 2840, 2982, 3195, 3261, 3408, 3976, 4260, 4348, 4473, 4970, 5040, 5112, 5435, 5680, 5964, 6390, 6522, 7455, 7609, 7952, 8520, 8696, 8946, 9783, 9940, 10224, 10870, 11928, 12780, 13044, 14910, 15218, 16305, 17040, 17392, 17892, 19566, 19880, 21740, 22365, 22827, 23856, 25560, 26088, 29820, 30436, 32610, 35784, 38045, 39132, 39760, 43480, 44730, 45654, 48915, 51120, 52176, 59640, 60872, 65220, 68481, 71568, 76090, 77177, 78264, 86960, 89460, 91308, 97830, 114135, 119280, 121744, 130440, 136962, 152180, 154354, 156528, 178920, 182616, 195660, 228270, 231531, 260880, 273924, 304360, 308708, 342405, 357840, 365232, 385885, 391320, 456540, 463062, 540239, 547848, 608720, 617416, 684810, 694593, 771770, 782640, 913080, 926124, 1080478, 1095696, 1157655, 1234832, 1369620, 1389186, 1543540, 1620717, 1826160, 1852248, 2160956, 2315310, 2701195, 2739240, 2778372, 3087080, 3241434, 3472965, 3704496, 4321912, 4630620, 4862151, 5402390, 5478480, 5556744, 6174160, 6482868, 6945930, 8103585, 8643824, 9261240, 9724302, 10804780, 11113488, 12965736, 13891860, 16207170, 18522480, 19448604, 21609560, 24310755, 25931472, 27783720, 32414340, 38897208, 43219120, 48621510, 55567440, 64828680, 77794416, 97243020, 129657360, 194486040, 388972080]

約数ペア:
[(1, 388972080), (2, 194486040), (3, 129657360), (4, 97243020), (5, 77794416), (6, 64828680), (7, 55567440), (8, 48621510), (9, 43219120), (10, 38897208), (12, 32414340), (14, 27783720), (15, 25931472), (16, 24310755), (18, 21609560), (20, 19448604), (21, 18522480), (24, 16207170), (28, 13891860), (30, 12965736), (35, 11113488), (36, 10804780), (40, 9724302), (42, 9261240), (45, 8643824), (48, 8103585), (56, 6945930), (60, 6482868), (63, 6174160), (70, 5556744), (71, 5478480), (72, 5402390), (80, 4862151), (84, 4630620), (90, 4321912), (105, 3704496), (112, 3472965), (120, 3241434), (126, 3087080), (140, 2778372), (142, 2739240), (144, 2701195), (168, 2315310), (180, 2160956), (210, 1852248), (213, 1826160), (240, 1620717), (252, 1543540), (280, 1389186), (284, 1369620), (315, 1234832), (336, 1157655), (355, 1095696), (360, 1080478), (420, 926124), (426, 913080), (497, 782640), (504, 771770), (560, 694593), (568, 684810), (630, 617416), (639, 608720), (710, 547848), (720, 540239), (840, 463062), (852, 456540), (994, 391320), (1008, 385885), (1065, 365232), (1087, 357840), (1136, 342405), (1260, 308708), (1278, 304360), (1420, 273924), (1491, 260880), (1680, 231531), (1704, 228270), (1988, 195660), (2130, 182616), (2174, 178920), (2485, 156528), (2520, 154354), (2556, 152180), (2840, 136962), (2982, 130440), (3195, 121744), (3261, 119280), (3408, 114135), (3976, 97830), (4260, 91308), (4348, 89460), (4473, 86960), (4970, 78264), (5040, 77177), (5112, 76090), (5435, 71568), (5680, 68481), (5964, 65220), (6390, 60872), (6522, 59640), (7455, 52176), (7609, 51120), (7952, 48915), (8520, 45654), (8696, 44730), (8946, 43480), (9783, 39760), (9940, 39132), (10224, 38045), (10870, 35784), (11928, 32610), (12780, 30436), (13044, 29820), (14910, 26088), (15218, 25560), (16305, 23856), (17040, 22827), (17392, 22365), (17892, 21740), (19566, 19880)]

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