72905413

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 91238400

約数和(自身を除く): 18332987

約数列:

[1, 7, 19, 47, 107, 109, 133, 329, 749, 763, 893, 2033, 2071, 5029, 5123, 6251, 11663, 14231, 14497, 35203, 35861, 81641, 95551, 97337, 221597, 548161, 668857, 681359, 1551179, 3837127, 10415059, 72905413]

約数ペア:

[(1, 72905413), (7, 10415059), (19, 3837127), (47, 1551179), (107, 681359), (109, 668857), (133, 548161), (329, 221597), (749, 97337), (763, 95551), (893, 81641), (2033, 35861), (2071, 35203), (5029, 14497), (5123, 14231), (6251, 11663)]