19998652510

素因数分解:

$2^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2894161}}^1$

素因数の和:2894859

約数の個数: 16

約数和(自身を含む): 36049681872

約数和(自身を除く): 16051029362

約数列:

[1, 2, 5, 10, 691, 1382, 3455, 6910, 2894161, 5788322, 14470805, 28941610, 1999865251, 3999730502, 9999326255, 19998652510]

約数ペア:

[(1, 19998652510), (2, 9999326255), (5, 3999730502), (10, 1999865251), (691, 28941610), (1382, 14470805), (3455, 5788322), (6910, 2894161)]