2041840

素因数分解:

$2^4\times 5^1\times {\mathrm{25523}}^1$

素因数の和:25536

約数の個数: 20

約数和(自身を含む): 4747464

約数和(自身を除く): 2705624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25523, 51046, 102092, 127615, 204184, 255230, 408368, 510460, 1020920, 2041840]

約数ペア:

[(1, 2041840), (2, 1020920), (4, 510460), (5, 408368), (8, 255230), (10, 204184), (16, 127615), (20, 102092), (40, 51046), (80, 25523)]