18499880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66071}}^1$

素因数の和:66089

約数の個数: 32

約数和(自身を含む): 47571840

約数和(自身を除く): 29071960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66071, 132142, 264284, 330355, 462497, 528568, 660710, 924994, 1321420, 1849988, 2312485, 2642840, 3699976, 4624970, 9249940, 18499880]

約数ペア:

[(1, 18499880), (2, 9249940), (4, 4624970), (5, 3699976), (7, 2642840), (8, 2312485), (10, 1849988), (14, 1321420), (20, 924994), (28, 660710), (35, 528568), (40, 462497), (56, 330355), (70, 264284), (140, 132142), (280, 66071)]