198392180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{202441}}^1$

素因数の和:202464

約数の個数: 36

約数和(自身を含む): 484646148

約数和(自身を除く): 286253968

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 202441, 404882, 809764, 1012205, 1417087, 2024410, 2834174, 4048820, 5668348, 7085435, 9919609, 14170870, 19839218, 28341740, 39678436, 49598045, 99196090, 198392180]

約数ペア:

[(1, 198392180), (2, 99196090), (4, 49598045), (5, 39678436), (7, 28341740), (10, 19839218), (14, 14170870), (20, 9919609), (28, 7085435), (35, 5668348), (49, 4048820), (70, 2834174), (98, 2024410), (140, 1417087), (196, 1012205), (245, 809764), (490, 404882), (980, 202441)]