20443955

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 29113344

約数和(自身を除く): 8669389

約数列:

[1, 5, 7, 35, 53, 103, 107, 265, 371, 515, 535, 721, 749, 1855, 3605, 3745, 5459, 5671, 11021, 27295, 28355, 38213, 39697, 55105, 77147, 191065, 198485, 385735, 584113, 2920565, 4088791, 20443955]

約数ペア:

[(1, 20443955), (5, 4088791), (7, 2920565), (35, 584113), (53, 385735), (103, 198485), (107, 191065), (265, 77147), (371, 55105), (515, 39697), (535, 38213), (721, 28355), (749, 27295), (1855, 11021), (3605, 5671), (3745, 5459)]