20201981954

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{467}}^1\times {\mathrm{40129}}^1$

素因数の和:40623

約数の個数: 48

約数和(自身を含む): 38538283680

約数和(自身を除く): 18336301726

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 467, 539, 934, 1078, 3269, 5137, 6538, 10274, 22883, 35959, 40129, 45766, 71918, 80258, 251713, 280903, 441419, 503426, 561806, 882838, 1966321, 3089933, 3932642, 6179866, 18740243, 21629531, 37480486, 43259062, 131181701, 206142673, 262363402, 412285346, 918271907, 1442998711, 1836543814, 2885997422, 10100990977, 20201981954]

約数ペア:

[(1, 20201981954), (2, 10100990977), (7, 2885997422), (11, 1836543814), (14, 1442998711), (22, 918271907), (49, 412285346), (77, 262363402), (98, 206142673), (154, 131181701), (467, 43259062), (539, 37480486), (934, 21629531), (1078, 18740243), (3269, 6179866), (5137, 3932642), (6538, 3089933), (10274, 1966321), (22883, 882838), (35959, 561806), (40129, 503426), (45766, 441419), (71918, 280903), (80258, 251713)]