About the Number

128442720

128442719 ← → 128442721

2進数表記:111101001111110000101100000

漢数字表記:一億二千八百四十四万二千七百二十

素因数分解:

2 5 × 3 1 × 5 1 × 7 2 × 43 1 × 127 1

素因数の和:202
約数の個数: 288
約数和(自身を含む): 485388288
約数和(自身を除く): 356945568

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 43, 48, 49, 56, 60, 70, 80, 84, 86, 96, 98, 105, 112, 120, 127, 129, 140, 147, 160, 168, 172, 196, 210, 215, 224, 240, 245, 254, 258, 280, 294, 301, 336, 344, 381, 392, 420, 430, 480, 490, 508, 516, 560, 588, 602, 635, 645, 672, 688, 735, 762, 784, 840, 860, 889, 903, 980, 1016, 1032, 1120, 1176, 1204, 1270, 1290, 1376, 1470, 1505, 1524, 1568, 1680, 1720, 1778, 1806, 1905, 1960, 2032, 2064, 2107, 2352, 2408, 2540, 2580, 2667, 2940, 3010, 3048, 3360, 3440, 3556, 3612, 3810, 3920, 4064, 4128, 4214, 4445, 4515, 4704, 4816, 5080, 5160, 5334, 5461, 5880, 6020, 6096, 6223, 6321, 6880, 7112, 7224, 7620, 7840, 8428, 8890, 9030, 9632, 10160, 10320, 10535, 10668, 10922, 11760, 12040, 12192, 12446, 12642, 13335, 14224, 14448, 15240, 16383, 16856, 17780, 18060, 18669, 20320, 20640, 21070, 21336, 21844, 23520, 24080, 24892, 25284, 26670, 27305, 28448, 28896, 30480, 31115, 31605, 32766, 33712, 35560, 36120, 37338, 38227, 42140, 42672, 43688, 48160, 49784, 50568, 53340, 54610, 60960, 62230, 63210, 65532, 67424, 71120, 72240, 74676, 76454, 81915, 84280, 85344, 87376, 93345, 99568, 101136, 106680, 109220, 114681, 124460, 126420, 131064, 142240, 144480, 149352, 152908, 163830, 168560, 174752, 186690, 191135, 199136, 202272, 213360, 218440, 229362, 248920, 252840, 262128, 267589, 298704, 305816, 327660, 337120, 373380, 382270, 426720, 436880, 458724, 497840, 505680, 524256, 535178, 573405, 597408, 611632, 655320, 746760, 764540, 802767, 873760, 917448, 995680, 1011360, 1070356, 1146810, 1223264, 1310640, 1337945, 1493520, 1529080, 1605534, 1834896, 2140712, 2293620, 2621280, 2675890, 2987040, 3058160, 3211068, 3669792, 4013835, 4281424, 4587240, 5351780, 6116320, 6422136, 8027670, 8562848, 9174480, 10703560, 12844272, 16055340, 18348960, 21407120, 25688544, 32110680, 42814240, 64221360, 128442720]

約数ペア:
[(1, 128442720), (2, 64221360), (3, 42814240), (4, 32110680), (5, 25688544), (6, 21407120), (7, 18348960), (8, 16055340), (10, 12844272), (12, 10703560), (14, 9174480), (15, 8562848), (16, 8027670), (20, 6422136), (21, 6116320), (24, 5351780), (28, 4587240), (30, 4281424), (32, 4013835), (35, 3669792), (40, 3211068), (42, 3058160), (43, 2987040), (48, 2675890), (49, 2621280), (56, 2293620), (60, 2140712), (70, 1834896), (80, 1605534), (84, 1529080), (86, 1493520), (96, 1337945), (98, 1310640), (105, 1223264), (112, 1146810), (120, 1070356), (127, 1011360), (129, 995680), (140, 917448), (147, 873760), (160, 802767), (168, 764540), (172, 746760), (196, 655320), (210, 611632), (215, 597408), (224, 573405), (240, 535178), (245, 524256), (254, 505680), (258, 497840), (280, 458724), (294, 436880), (301, 426720), (336, 382270), (344, 373380), (381, 337120), (392, 327660), (420, 305816), (430, 298704), (480, 267589), (490, 262128), (508, 252840), (516, 248920), (560, 229362), (588, 218440), (602, 213360), (635, 202272), (645, 199136), (672, 191135), (688, 186690), (735, 174752), (762, 168560), (784, 163830), (840, 152908), (860, 149352), (889, 144480), (903, 142240), (980, 131064), (1016, 126420), (1032, 124460), (1120, 114681), (1176, 109220), (1204, 106680), (1270, 101136), (1290, 99568), (1376, 93345), (1470, 87376), (1505, 85344), (1524, 84280), (1568, 81915), (1680, 76454), (1720, 74676), (1778, 72240), (1806, 71120), (1905, 67424), (1960, 65532), (2032, 63210), (2064, 62230), (2107, 60960), (2352, 54610), (2408, 53340), (2540, 50568), (2580, 49784), (2667, 48160), (2940, 43688), (3010, 42672), (3048, 42140), (3360, 38227), (3440, 37338), (3556, 36120), (3612, 35560), (3810, 33712), (3920, 32766), (4064, 31605), (4128, 31115), (4214, 30480), (4445, 28896), (4515, 28448), (4704, 27305), (4816, 26670), (5080, 25284), (5160, 24892), (5334, 24080), (5461, 23520), (5880, 21844), (6020, 21336), (6096, 21070), (6223, 20640), (6321, 20320), (6880, 18669), (7112, 18060), (7224, 17780), (7620, 16856), (7840, 16383), (8428, 15240), (8890, 14448), (9030, 14224), (9632, 13335), (10160, 12642), (10320, 12446), (10535, 12192), (10668, 12040), (10922, 11760)]

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