11997775640

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{747991}}^1$

素因数の和:748403

約数の個数: 32

約数和(自身を含む): 27062350560

約数和(自身を除く): 15064574920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 16040, 747991, 1495982, 2991964, 3739955, 5983928, 7479910, 14959820, 29919640, 299944391, 599888782, 1199777564, 1499721955, 2399555128, 2999443910, 5998887820, 11997775640]

約数ペア:

[(1, 11997775640), (2, 5998887820), (4, 2999443910), (5, 2399555128), (8, 1499721955), (10, 1199777564), (20, 599888782), (40, 299944391), (401, 29919640), (802, 14959820), (1604, 7479910), (2005, 5983928), (3208, 3739955), (4010, 2991964), (8020, 1495982), (16040, 747991)]