About the Number

128709840

128709839 ← → 128709841

2進数表記:111101010111111010011010000

漢数字表記:一億二千八百七十万九千八百四十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 23 1 × 3331 1

素因数の和:3377
約数の個数: 160
約数和(自身を含む): 475969536
約数和(自身を除く): 347259696

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 552, 560, 644, 690, 805, 840, 920, 966, 1104, 1288, 1380, 1610, 1680, 1840, 1932, 2415, 2576, 2760, 3220, 3331, 3864, 4830, 5520, 6440, 6662, 7728, 9660, 9993, 12880, 13324, 16655, 19320, 19986, 23317, 26648, 33310, 38640, 39972, 46634, 49965, 53296, 66620, 69951, 76613, 79944, 93268, 99930, 116585, 133240, 139902, 153226, 159888, 186536, 199860, 229839, 233170, 266480, 279804, 306452, 349755, 373072, 383065, 399720, 459678, 466340, 536291, 559608, 612904, 699510, 766130, 799440, 919356, 932680, 1072582, 1119216, 1149195, 1225808, 1399020, 1532260, 1608873, 1838712, 1865360, 2145164, 2298390, 2681455, 2798040, 3064520, 3217746, 3677424, 4290328, 4596780, 5362910, 5596080, 6129040, 6435492, 8044365, 8580656, 9193560, 10725820, 12870984, 16088730, 18387120, 21451640, 25741968, 32177460, 42903280, 64354920, 128709840]

約数ペア:
[(1, 128709840), (2, 64354920), (3, 42903280), (4, 32177460), (5, 25741968), (6, 21451640), (7, 18387120), (8, 16088730), (10, 12870984), (12, 10725820), (14, 9193560), (15, 8580656), (16, 8044365), (20, 6435492), (21, 6129040), (23, 5596080), (24, 5362910), (28, 4596780), (30, 4290328), (35, 3677424), (40, 3217746), (42, 3064520), (46, 2798040), (48, 2681455), (56, 2298390), (60, 2145164), (69, 1865360), (70, 1838712), (80, 1608873), (84, 1532260), (92, 1399020), (105, 1225808), (112, 1149195), (115, 1119216), (120, 1072582), (138, 932680), (140, 919356), (161, 799440), (168, 766130), (184, 699510), (210, 612904), (230, 559608), (240, 536291), (276, 466340), (280, 459678), (322, 399720), (336, 383065), (345, 373072), (368, 349755), (420, 306452), (460, 279804), (483, 266480), (552, 233170), (560, 229839), (644, 199860), (690, 186536), (805, 159888), (840, 153226), (920, 139902), (966, 133240), (1104, 116585), (1288, 99930), (1380, 93268), (1610, 79944), (1680, 76613), (1840, 69951), (1932, 66620), (2415, 53296), (2576, 49965), (2760, 46634), (3220, 39972), (3331, 38640), (3864, 33310), (4830, 26648), (5520, 23317), (6440, 19986), (6662, 19320), (7728, 16655), (9660, 13324), (9993, 12880)]

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