20165065

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1321}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 25128576

約数和(自身を除く): 4963511

約数列:

[1, 5, 43, 71, 215, 355, 1321, 3053, 6605, 15265, 56803, 93791, 284015, 468955, 4033013, 20165065]

約数ペア:

[(1, 20165065), (5, 4033013), (43, 468955), (71, 284015), (215, 93791), (355, 56803), (1321, 15265), (3053, 6605)]