15894940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{827}}^1$

素因数の和:898

約数の個数: 36

約数和(自身を含む): 34532568

約数和(自身を除く): 18637628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 827, 961, 1654, 1922, 3308, 3844, 4135, 4805, 8270, 9610, 16540, 19220, 25637, 51274, 102548, 128185, 256370, 512740, 794747, 1589494, 3178988, 3973735, 7947470, 15894940]

約数ペア:

[(1, 15894940), (2, 7947470), (4, 3973735), (5, 3178988), (10, 1589494), (20, 794747), (31, 512740), (62, 256370), (124, 128185), (155, 102548), (310, 51274), (620, 25637), (827, 19220), (961, 16540), (1654, 9610), (1922, 8270), (3308, 4805), (3844, 4135)]