30721285

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3389}}^1$

素因数の和:3445

約数の個数: 24

約数和(自身を含む): 44056440

約数和(自身を除く): 13335155

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 1295, 1813, 3389, 9065, 16945, 23723, 118615, 125393, 166061, 626965, 830305, 877751, 4388755, 6144257, 30721285]

約数ペア:

[(1, 30721285), (5, 6144257), (7, 4388755), (35, 877751), (37, 830305), (49, 626965), (185, 166061), (245, 125393), (259, 118615), (1295, 23723), (1813, 16945), (3389, 9065)]