18389820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9887}}^1$

素因数の和:9930

約数の個数: 48

約数和(自身を含む): 53157888

約数和(自身を除く): 34768068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 9887, 19774, 29661, 39548, 49435, 59322, 98870, 118644, 148305, 197740, 296610, 306497, 593220, 612994, 919491, 1225988, 1532485, 1838982, 3064970, 3677964, 4597455, 6129940, 9194910, 18389820]

約数ペア:

[(1, 18389820), (2, 9194910), (3, 6129940), (4, 4597455), (5, 3677964), (6, 3064970), (10, 1838982), (12, 1532485), (15, 1225988), (20, 919491), (30, 612994), (31, 593220), (60, 306497), (62, 296610), (93, 197740), (124, 148305), (155, 118644), (186, 98870), (310, 59322), (372, 49435), (465, 39548), (620, 29661), (930, 19774), (1860, 9887)]