81813772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{2557}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 151126640

約数和(自身を除く): 69312868

約数列:

[1, 2, 4, 19, 38, 76, 421, 842, 1684, 2557, 5114, 7999, 10228, 15998, 31996, 48583, 97166, 194332, 1076497, 2152994, 4305988, 20453443, 40906886, 81813772]

約数ペア:

[(1, 81813772), (2, 40906886), (4, 20453443), (19, 4305988), (38, 2152994), (76, 1076497), (421, 194332), (842, 97166), (1684, 48583), (2557, 31996), (5114, 15998), (7999, 10228)]