81332895

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{463}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 152340480

約数和(自身を除く): 71007585

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 239, 245, 463, 717, 735, 1195, 1389, 1673, 2315, 3241, 3585, 5019, 6945, 8365, 9723, 11711, 16205, 22687, 25095, 35133, 48615, 58555, 68061, 110657, 113435, 175665, 331971, 340305, 553285, 774599, 1659855, 2323797, 3872995, 5422193, 11618985, 16266579, 27110965, 81332895]

約数ペア:

[(1, 81332895), (3, 27110965), (5, 16266579), (7, 11618985), (15, 5422193), (21, 3872995), (35, 2323797), (49, 1659855), (105, 774599), (147, 553285), (239, 340305), (245, 331971), (463, 175665), (717, 113435), (735, 110657), (1195, 68061), (1389, 58555), (1673, 48615), (2315, 35133), (3241, 25095), (3585, 22687), (5019, 16205), (6945, 11711), (8365, 9723)]