19708810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1289}}^1$

素因数の和:1446

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 19300790

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1289, 1390, 1529, 2578, 3058, 6445, 7645, 12890, 14179, 15290, 28358, 70895, 141790, 179171, 358342, 895855, 1791710, 1970881, 3941762, 9854405, 19708810]

約数ペア:

[(1, 19708810), (2, 9854405), (5, 3941762), (10, 1970881), (11, 1791710), (22, 895855), (55, 358342), (110, 179171), (139, 141790), (278, 70895), (695, 28358), (1289, 15290), (1390, 14179), (1529, 12890), (2578, 7645), (3058, 6445)]