19217660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12479}}^1$

素因数の和:12506

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 31101700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12479, 24958, 49916, 62395, 87353, 124790, 137269, 174706, 249580, 274538, 349412, 436765, 549076, 686345, 873530, 960883, 1372690, 1747060, 1921766, 2745380, 3843532, 4804415, 9608830, 19217660]

約数ペア:

[(1, 19217660), (2, 9608830), (4, 4804415), (5, 3843532), (7, 2745380), (10, 1921766), (11, 1747060), (14, 1372690), (20, 960883), (22, 873530), (28, 686345), (35, 549076), (44, 436765), (55, 349412), (70, 274538), (77, 249580), (110, 174706), (140, 137269), (154, 124790), (220, 87353), (308, 62395), (385, 49916), (770, 24958), (1540, 12479)]