161811208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{12251}}^1$

素因数の和:12397

約数の個数: 32

約数和(自身を含む): 329333760

約数和(自身を除く): 167522552

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1651, 3302, 6604, 12251, 13208, 24502, 49004, 98008, 159263, 318526, 637052, 1274104, 1555877, 3111754, 6223508, 12447016, 20226401, 40452802, 80905604, 161811208]

約数ペア:

[(1, 161811208), (2, 80905604), (4, 40452802), (8, 20226401), (13, 12447016), (26, 6223508), (52, 3111754), (104, 1555877), (127, 1274104), (254, 637052), (508, 318526), (1016, 159263), (1651, 98008), (3302, 49004), (6604, 24502), (12251, 13208)]