15550640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{3967}}^1$

素因数の和:3994

約数の個数: 60

約数和(自身を含む): 42068736

約数和(自身を除く): 26518096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 3967, 7934, 15868, 19835, 27769, 31736, 39670, 55538, 63472, 79340, 111076, 138845, 158680, 194383, 222152, 277690, 317360, 388766, 444304, 555380, 777532, 971915, 1110760, 1555064, 1943830, 2221520, 3110128, 3887660, 7775320, 15550640]

約数ペア:

[(1, 15550640), (2, 7775320), (4, 3887660), (5, 3110128), (7, 2221520), (8, 1943830), (10, 1555064), (14, 1110760), (16, 971915), (20, 777532), (28, 555380), (35, 444304), (40, 388766), (49, 317360), (56, 277690), (70, 222152), (80, 194383), (98, 158680), (112, 138845), (140, 111076), (196, 79340), (245, 63472), (280, 55538), (392, 39670), (490, 31736), (560, 27769), (784, 19835), (980, 15868), (1960, 7934), (3920, 3967)]