80764040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12541}}^1$

素因数の和:12582

約数の個数: 64

約数和(自身を含む): 216725760

約数和(自身を除く): 135961720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 12541, 25082, 50164, 62705, 87787, 100328, 125410, 175574, 250820, 288443, 351148, 438935, 501640, 576886, 702296, 877870, 1153772, 1442215, 1755740, 2019101, 2307544, 2884430, 3511480, 4038202, 5768860, 8076404, 10095505, 11537720, 16152808, 20191010, 40382020, 80764040]

約数ペア:

[(1, 80764040), (2, 40382020), (4, 20191010), (5, 16152808), (7, 11537720), (8, 10095505), (10, 8076404), (14, 5768860), (20, 4038202), (23, 3511480), (28, 2884430), (35, 2307544), (40, 2019101), (46, 1755740), (56, 1442215), (70, 1153772), (92, 877870), (115, 702296), (140, 576886), (161, 501640), (184, 438935), (230, 351148), (280, 288443), (322, 250820), (460, 175574), (644, 125410), (805, 100328), (920, 87787), (1288, 62705), (1610, 50164), (3220, 25082), (6440, 12541)]