About the Number

128768080

128768079 ← → 128768081

2進数表記:111101011001101100001010000

漢数字表記:一億二千八百七十六万八千八十

素因数分解:

2 4 × 5 1 × 7 2 × 107 1 × 307 1

素因数の和:441
約数の個数: 120
約数和(自身を含む): 352664928
約数和(自身を除く): 223896848

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 107, 112, 140, 196, 214, 245, 280, 307, 392, 428, 490, 535, 560, 614, 749, 784, 856, 980, 1070, 1228, 1498, 1535, 1712, 1960, 2140, 2149, 2456, 2996, 3070, 3745, 3920, 4280, 4298, 4912, 5243, 5992, 6140, 7490, 8560, 8596, 10486, 10745, 11984, 12280, 14980, 15043, 17192, 20972, 21490, 24560, 26215, 29960, 30086, 32849, 34384, 41944, 42980, 52430, 59920, 60172, 65698, 75215, 83888, 85960, 104860, 120344, 131396, 150430, 164245, 171920, 209720, 229943, 240688, 262792, 300860, 328490, 419440, 459886, 525584, 601720, 656980, 919772, 1149715, 1203440, 1313960, 1609601, 1839544, 2299430, 2627920, 3219202, 3679088, 4598860, 6438404, 8048005, 9197720, 12876808, 16096010, 18395440, 25753616, 32192020, 64384040, 128768080]

約数ペア:
[(1, 128768080), (2, 64384040), (4, 32192020), (5, 25753616), (7, 18395440), (8, 16096010), (10, 12876808), (14, 9197720), (16, 8048005), (20, 6438404), (28, 4598860), (35, 3679088), (40, 3219202), (49, 2627920), (56, 2299430), (70, 1839544), (80, 1609601), (98, 1313960), (107, 1203440), (112, 1149715), (140, 919772), (196, 656980), (214, 601720), (245, 525584), (280, 459886), (307, 419440), (392, 328490), (428, 300860), (490, 262792), (535, 240688), (560, 229943), (614, 209720), (749, 171920), (784, 164245), (856, 150430), (980, 131396), (1070, 120344), (1228, 104860), (1498, 85960), (1535, 83888), (1712, 75215), (1960, 65698), (2140, 60172), (2149, 59920), (2456, 52430), (2996, 42980), (3070, 41944), (3745, 34384), (3920, 32849), (4280, 30086), (4298, 29960), (4912, 26215), (5243, 24560), (5992, 21490), (6140, 20972), (7490, 17192), (8560, 15043), (8596, 14980), (10486, 12280), (10745, 11984)]

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