20123730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20327}}^1$

素因数の和:20351

約数の個数: 48

約数和(自身を含む): 57081024

約数和(自身を除く): 36957294

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20327, 40654, 60981, 101635, 121962, 182943, 203270, 223597, 304905, 365886, 447194, 609810, 670791, 914715, 1117985, 1341582, 1829430, 2012373, 2235970, 3353955, 4024746, 6707910, 10061865, 20123730]

約数ペア:

[(1, 20123730), (2, 10061865), (3, 6707910), (5, 4024746), (6, 3353955), (9, 2235970), (10, 2012373), (11, 1829430), (15, 1341582), (18, 1117985), (22, 914715), (30, 670791), (33, 609810), (45, 447194), (55, 365886), (66, 304905), (90, 223597), (99, 203270), (110, 182943), (165, 121962), (198, 101635), (330, 60981), (495, 40654), (990, 20327)]