1920647540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{877}}^1\times {\mathrm{15643}}^1$

素因数の和:16536

約数の個数: 48

約数和(自身を含む): 4615105152

約数和(自身を除く): 2694457612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 877, 1754, 3508, 4385, 6139, 8770, 12278, 15643, 17540, 24556, 30695, 31286, 61390, 62572, 78215, 109501, 122780, 156430, 219002, 312860, 438004, 547505, 1095010, 2190020, 13718911, 27437822, 54875644, 68594555, 96032377, 137189110, 192064754, 274378220, 384129508, 480161885, 960323770, 1920647540]

約数ペア:

[(1, 1920647540), (2, 960323770), (4, 480161885), (5, 384129508), (7, 274378220), (10, 192064754), (14, 137189110), (20, 96032377), (28, 68594555), (35, 54875644), (70, 27437822), (140, 13718911), (877, 2190020), (1754, 1095010), (3508, 547505), (4385, 438004), (6139, 312860), (8770, 219002), (12278, 156430), (15643, 122780), (17540, 109501), (24556, 78215), (30695, 62572), (31286, 61390)]