198078580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{202121}}^1$

素因数の和:202144

約数の個数: 36

約数和(自身を含む): 483880068

約数和(自身を除く): 285801488

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 202121, 404242, 808484, 1010605, 1414847, 2021210, 2829694, 4042420, 5659388, 7074235, 9903929, 14148470, 19807858, 28296940, 39615716, 49519645, 99039290, 198078580]

約数ペア:

[(1, 198078580), (2, 99039290), (4, 49519645), (5, 39615716), (7, 28296940), (10, 19807858), (14, 14148470), (20, 9903929), (28, 7074235), (35, 5659388), (49, 4042420), (70, 2829694), (98, 2021210), (140, 1414847), (196, 1010605), (245, 808484), (490, 404242), (980, 202121)]