20403976315

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2908621}}^1$

素因数の和:2908710

約数の個数: 16

約数和(自身を含む): 25968177216

約数和(自身を除く): 5564200901

約数列:

[1, 5, 23, 61, 115, 305, 1403, 7015, 2908621, 14543105, 66898283, 177425881, 334491415, 887129405, 4080795263, 20403976315]

約数ペア:

[(1, 20403976315), (5, 4080795263), (23, 887129405), (61, 334491415), (115, 177425881), (305, 66898283), (1403, 14543105), (7015, 2908621)]