20783455

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1459}}^1$

素因数の和:1519

約数の個数: 32

約数和(自身を含む): 31956480

約数和(自身を除く): 11173025

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1295, 1459, 2035, 2849, 7295, 10213, 14245, 16049, 51065, 53983, 80245, 112343, 269915, 377881, 561715, 593813, 1889405, 2969065, 4156691, 20783455]

約数ペア:

[(1, 20783455), (5, 4156691), (7, 2969065), (11, 1889405), (35, 593813), (37, 561715), (55, 377881), (77, 269915), (185, 112343), (259, 80245), (385, 53983), (407, 51065), (1295, 16049), (1459, 14245), (2035, 10213), (2849, 7295)]