20561170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1229}}^1$

素因数の和:1482

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 21947630

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 239, 478, 1195, 1229, 1673, 2390, 2458, 3346, 6145, 8365, 8603, 12290, 16730, 17206, 43015, 86030, 293731, 587462, 1468655, 2056117, 2937310, 4112234, 10280585, 20561170]

約数ペア:

[(1, 20561170), (2, 10280585), (5, 4112234), (7, 2937310), (10, 2056117), (14, 1468655), (35, 587462), (70, 293731), (239, 86030), (478, 43015), (1195, 17206), (1229, 16730), (1673, 12290), (2390, 8603), (2458, 8365), (3346, 6145)]