About the Number

128990880

128990879 ← → 128990881

2進数表記:111101100000011111010100000

漢数字表記:一億二千八百九十九万八百八十

素因数分解:

2 5 × 3 4 × 5 1 × 37 1 × 269 1

素因数の和:333
約数の個数: 240
約数和(自身を含む): 469271880
約数和(自身を除く): 340281000

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 81, 90, 96, 108, 111, 120, 135, 144, 148, 160, 162, 180, 185, 216, 222, 240, 269, 270, 288, 296, 324, 333, 360, 370, 405, 432, 444, 480, 538, 540, 555, 592, 648, 666, 720, 740, 807, 810, 864, 888, 999, 1076, 1080, 1110, 1184, 1296, 1332, 1345, 1440, 1480, 1614, 1620, 1665, 1776, 1998, 2152, 2160, 2220, 2421, 2592, 2664, 2690, 2960, 2997, 3228, 3240, 3330, 3552, 3996, 4035, 4304, 4320, 4440, 4842, 4995, 5328, 5380, 5920, 5994, 6456, 6480, 6660, 7263, 7992, 8070, 8608, 8880, 9684, 9953, 9990, 10656, 10760, 11988, 12105, 12912, 12960, 13320, 14526, 14985, 15984, 16140, 17760, 19368, 19906, 19980, 21520, 21789, 23976, 24210, 25824, 26640, 29052, 29859, 29970, 31968, 32280, 36315, 38736, 39812, 39960, 43040, 43578, 47952, 48420, 49765, 53280, 58104, 59718, 59940, 64560, 72630, 77472, 79624, 79920, 87156, 89577, 95904, 96840, 99530, 108945, 116208, 119436, 119880, 129120, 145260, 149295, 159248, 159840, 174312, 179154, 193680, 199060, 217890, 232416, 238872, 239760, 268731, 290520, 298590, 318496, 348624, 358308, 387360, 398120, 435780, 447885, 477744, 479520, 537462, 581040, 597180, 697248, 716616, 796240, 806193, 871560, 895770, 955488, 1074924, 1162080, 1194360, 1343655, 1433232, 1592480, 1612386, 1743120, 1791540, 2149848, 2388720, 2687310, 2866464, 3224772, 3486240, 3583080, 4030965, 4299696, 4777440, 5374620, 6449544, 7166160, 8061930, 8599392, 10749240, 12899088, 14332320, 16123860, 21498480, 25798176, 32247720, 42996960, 64495440, 128990880]

約数ペア:
[(1, 128990880), (2, 64495440), (3, 42996960), (4, 32247720), (5, 25798176), (6, 21498480), (8, 16123860), (9, 14332320), (10, 12899088), (12, 10749240), (15, 8599392), (16, 8061930), (18, 7166160), (20, 6449544), (24, 5374620), (27, 4777440), (30, 4299696), (32, 4030965), (36, 3583080), (37, 3486240), (40, 3224772), (45, 2866464), (48, 2687310), (54, 2388720), (60, 2149848), (72, 1791540), (74, 1743120), (80, 1612386), (81, 1592480), (90, 1433232), (96, 1343655), (108, 1194360), (111, 1162080), (120, 1074924), (135, 955488), (144, 895770), (148, 871560), (160, 806193), (162, 796240), (180, 716616), (185, 697248), (216, 597180), (222, 581040), (240, 537462), (269, 479520), (270, 477744), (288, 447885), (296, 435780), (324, 398120), (333, 387360), (360, 358308), (370, 348624), (405, 318496), (432, 298590), (444, 290520), (480, 268731), (538, 239760), (540, 238872), (555, 232416), (592, 217890), (648, 199060), (666, 193680), (720, 179154), (740, 174312), (807, 159840), (810, 159248), (864, 149295), (888, 145260), (999, 129120), (1076, 119880), (1080, 119436), (1110, 116208), (1184, 108945), (1296, 99530), (1332, 96840), (1345, 95904), (1440, 89577), (1480, 87156), (1614, 79920), (1620, 79624), (1665, 77472), (1776, 72630), (1998, 64560), (2152, 59940), (2160, 59718), (2220, 58104), (2421, 53280), (2592, 49765), (2664, 48420), (2690, 47952), (2960, 43578), (2997, 43040), (3228, 39960), (3240, 39812), (3330, 38736), (3552, 36315), (3996, 32280), (4035, 31968), (4304, 29970), (4320, 29859), (4440, 29052), (4842, 26640), (4995, 25824), (5328, 24210), (5380, 23976), (5920, 21789), (5994, 21520), (6456, 19980), (6480, 19906), (6660, 19368), (7263, 17760), (7992, 16140), (8070, 15984), (8608, 14985), (8880, 14526), (9684, 13320), (9953, 12960), (9990, 12912), (10656, 12105), (10760, 11988)]

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