13688720

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1231}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 32081280

約数和(自身を除く): 18392560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1231, 1390, 2224, 2462, 2780, 4924, 5560, 6155, 9848, 11120, 12310, 19696, 24620, 49240, 98480, 171109, 342218, 684436, 855545, 1368872, 1711090, 2737744, 3422180, 6844360, 13688720]

約数ペア:

[(1, 13688720), (2, 6844360), (4, 3422180), (5, 2737744), (8, 1711090), (10, 1368872), (16, 855545), (20, 684436), (40, 342218), (80, 171109), (139, 98480), (278, 49240), (556, 24620), (695, 19696), (1112, 12310), (1231, 11120), (1390, 9848), (2224, 6155), (2462, 5560), (2780, 4924)]