80765720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:577

約数の個数: 96

約数和(自身を含む): 214228800

約数和(自身を除く): 133463080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 89, 98, 140, 178, 196, 245, 280, 356, 392, 445, 463, 490, 623, 712, 890, 926, 980, 1246, 1780, 1852, 1960, 2315, 2492, 3115, 3241, 3560, 3704, 4361, 4630, 4984, 6230, 6482, 8722, 9260, 12460, 12964, 16205, 17444, 18520, 21805, 22687, 24920, 25928, 32410, 34888, 41207, 43610, 45374, 64820, 82414, 87220, 90748, 113435, 129640, 164828, 174440, 181496, 206035, 226870, 288449, 329656, 412070, 453740, 576898, 824140, 907480, 1153796, 1442245, 1648280, 2019143, 2307592, 2884490, 4038286, 5768980, 8076572, 10095715, 11537960, 16153144, 20191430, 40382860, 80765720]

約数ペア:

[(1, 80765720), (2, 40382860), (4, 20191430), (5, 16153144), (7, 11537960), (8, 10095715), (10, 8076572), (14, 5768980), (20, 4038286), (28, 2884490), (35, 2307592), (40, 2019143), (49, 1648280), (56, 1442245), (70, 1153796), (89, 907480), (98, 824140), (140, 576898), (178, 453740), (196, 412070), (245, 329656), (280, 288449), (356, 226870), (392, 206035), (445, 181496), (463, 174440), (490, 164828), (623, 129640), (712, 113435), (890, 90748), (926, 87220), (980, 82414), (1246, 64820), (1780, 45374), (1852, 43610), (1960, 41207), (2315, 34888), (2492, 32410), (3115, 25928), (3241, 24920), (3560, 22687), (3704, 21805), (4361, 18520), (4630, 17444), (4984, 16205), (6230, 12964), (6482, 12460), (8722, 9260)]