19402980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{323383}}^1$

素因数の和:323395

約数の個数: 24

約数和(自身を含む): 54328512

約数和(自身を除く): 34925532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 323383, 646766, 970149, 1293532, 1616915, 1940298, 3233830, 3880596, 4850745, 6467660, 9701490, 19402980]

約数ペア:

[(1, 19402980), (2, 9701490), (3, 6467660), (4, 4850745), (5, 3880596), (6, 3233830), (10, 1940298), (12, 1616915), (15, 1293532), (20, 970149), (30, 646766), (60, 323383)]