680679915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1\times {\mathrm{3863}}^1$

素因数の和:4579

約数の個数: 32

約数和(自身を含む): 1155119616

約数和(自身を除く): 474439701

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 691, 2073, 3455, 3863, 10365, 11589, 11747, 19315, 35241, 57945, 58735, 65671, 176205, 197013, 328355, 985065, 2669333, 8007999, 13346665, 40039995, 45378661, 136135983, 226893305, 680679915]

約数ペア:

[(1, 680679915), (3, 226893305), (5, 136135983), (15, 45378661), (17, 40039995), (51, 13346665), (85, 8007999), (255, 2669333), (691, 985065), (2073, 328355), (3455, 197013), (3863, 176205), (10365, 65671), (11589, 58735), (11747, 57945), (19315, 35241)]