30440560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8849}}^1$

素因数の和:8905

約数の個数: 40

約数和(自身を含む): 72428400

約数和(自身を除く): 41987840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8849, 17698, 35396, 44245, 70792, 88490, 141584, 176980, 353960, 380507, 707920, 761014, 1522028, 1902535, 3044056, 3805070, 6088112, 7610140, 15220280, 30440560]

約数ペア:

[(1, 30440560), (2, 15220280), (4, 7610140), (5, 6088112), (8, 3805070), (10, 3044056), (16, 1902535), (20, 1522028), (40, 761014), (43, 707920), (80, 380507), (86, 353960), (172, 176980), (215, 141584), (344, 88490), (430, 70792), (688, 44245), (860, 35396), (1720, 17698), (3440, 8849)]