20218072805

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30403117}}^1$

素因数の和:30403148

約数の個数: 16

約数和(自身を含む): 29186993280

約数和(自身を除く): 8968920475

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 30403117, 152015585, 212821819, 577659223, 1064109095, 2888296115, 4043614561, 20218072805]

約数ペア:

[(1, 20218072805), (5, 4043614561), (7, 2888296115), (19, 1064109095), (35, 577659223), (95, 212821819), (133, 152015585), (665, 30403117)]