55807420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39301}}^1$

素因数の和:39381

約数の個数: 24

約数和(自身を含む): 118849248

約数和(自身を除く): 63041828

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 39301, 78602, 157204, 196505, 393010, 786020, 2790371, 5580742, 11161484, 13951855, 27903710, 55807420]

約数ペア:

[(1, 55807420), (2, 27903710), (4, 13951855), (5, 11161484), (10, 5580742), (20, 2790371), (71, 786020), (142, 393010), (284, 196505), (355, 157204), (710, 78602), (1420, 39301)]