About the Number

126712880

126712879 ← → 126712881

2進数表記:111100011010111110000110000

漢数字表記:一億二千六百七十一万二千八百八十

素因数分解:

2 4 × 5 1 × 7 1 × 353 1 × 641 1

素因数の和:1014
約数の個数: 80
約数和(自身を含む): 338174784
約数和(自身を除く): 211461904

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 353, 560, 641, 706, 1282, 1412, 1765, 2471, 2564, 2824, 3205, 3530, 4487, 4942, 5128, 5648, 6410, 7060, 8974, 9884, 10256, 12355, 12820, 14120, 17948, 19768, 22435, 24710, 25640, 28240, 35896, 39536, 44870, 49420, 51280, 71792, 89740, 98840, 179480, 197680, 226273, 358960, 452546, 905092, 1131365, 1583911, 1810184, 2262730, 3167822, 3620368, 4525460, 6335644, 7919555, 9050920, 12671288, 15839110, 18101840, 25342576, 31678220, 63356440, 126712880]

約数ペア:
[(1, 126712880), (2, 63356440), (4, 31678220), (5, 25342576), (7, 18101840), (8, 15839110), (10, 12671288), (14, 9050920), (16, 7919555), (20, 6335644), (28, 4525460), (35, 3620368), (40, 3167822), (56, 2262730), (70, 1810184), (80, 1583911), (112, 1131365), (140, 905092), (280, 452546), (353, 358960), (560, 226273), (641, 197680), (706, 179480), (1282, 98840), (1412, 89740), (1765, 71792), (2471, 51280), (2564, 49420), (2824, 44870), (3205, 39536), (3530, 35896), (4487, 28240), (4942, 25640), (5128, 24710), (5648, 22435), (6410, 19768), (7060, 17948), (8974, 14120), (9884, 12820), (10256, 12355)]

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