20075405

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9403}}^1$

素因数の和:9476

約数の個数: 16

約数和(自身を含む): 27986304

約数和(自身を除く): 7910899

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9403, 47015, 65821, 329105, 573583, 2867915, 4015081, 20075405]

約数ペア:

[(1, 20075405), (5, 4015081), (7, 2867915), (35, 573583), (61, 329105), (305, 65821), (427, 47015), (2135, 9403)]