About the Number

121680720

121680719 ← → 121680721

2進数表記:111010000001011001101010000

漢数字表記:一億二千百六十八万七百二十

素因数分解:

2 4 × 3 2 × 5 1 × 7 2 × 3449 1

素因数の和:3482
約数の個数: 180
約数和(自身を含む): 475499700
約数和(自身を除く): 353818980

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, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3449, 3528, 3920, 4410, 5040, 5880, 6898, 7056, 8820, 10347, 11760, 13796, 17245, 17640, 20694, 24143, 27592, 31041, 34490, 35280, 41388, 48286, 51735, 55184, 62082, 68980, 72429, 82776, 96572, 103470, 120715, 124164, 137960, 144858, 155205, 165552, 169001, 193144, 206940, 217287, 241430, 248328, 275920, 289716, 310410, 338002, 362145, 386288, 413880, 434574, 482860, 496656, 507003, 579432, 620820, 676004, 724290, 827760, 845005, 869148, 965720, 1014006, 1086435, 1158864, 1241640, 1352008, 1448580, 1521009, 1690010, 1738296, 1931440, 2028012, 2172870, 2483280, 2535015, 2704016, 2897160, 3042018, 3380020, 3476592, 4056024, 4345740, 5070030, 5794320, 6084036, 6760040, 7605045, 8112048, 8691480, 10140060, 12168072, 13520080, 15210090, 17382960, 20280120, 24336144, 30420180, 40560240, 60840360, 121680720]

約数ペア:
[(1, 121680720), (2, 60840360), (3, 40560240), (4, 30420180), (5, 24336144), (6, 20280120), (7, 17382960), (8, 15210090), (9, 13520080), (10, 12168072), (12, 10140060), (14, 8691480), (15, 8112048), (16, 7605045), (18, 6760040), (20, 6084036), (21, 5794320), (24, 5070030), (28, 4345740), (30, 4056024), (35, 3476592), (36, 3380020), (40, 3042018), (42, 2897160), (45, 2704016), (48, 2535015), (49, 2483280), (56, 2172870), (60, 2028012), (63, 1931440), (70, 1738296), (72, 1690010), (80, 1521009), (84, 1448580), (90, 1352008), (98, 1241640), (105, 1158864), (112, 1086435), (120, 1014006), (126, 965720), (140, 869148), (144, 845005), (147, 827760), (168, 724290), (180, 676004), (196, 620820), (210, 579432), (240, 507003), (245, 496656), (252, 482860), (280, 434574), (294, 413880), (315, 386288), (336, 362145), (360, 338002), (392, 310410), (420, 289716), (441, 275920), (490, 248328), (504, 241430), (560, 217287), (588, 206940), (630, 193144), (720, 169001), (735, 165552), (784, 155205), (840, 144858), (882, 137960), (980, 124164), (1008, 120715), (1176, 103470), (1260, 96572), (1470, 82776), (1680, 72429), (1764, 68980), (1960, 62082), (2205, 55184), (2352, 51735), (2520, 48286), (2940, 41388), (3449, 35280), (3528, 34490), (3920, 31041), (4410, 27592), (5040, 24143), (5880, 20694), (6898, 17640), (7056, 17245), (8820, 13796), (10347, 11760)]

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