81258404

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{1571}}^1$

素因数の和:1835

約数の個数: 24

約数和(自身を含む): 145164768

約数和(自身を除く): 63906364

約数列:

[1, 2, 4, 67, 134, 193, 268, 386, 772, 1571, 3142, 6284, 12931, 25862, 51724, 105257, 210514, 303203, 421028, 606406, 1212812, 20314601, 40629202, 81258404]

約数ペア:

[(1, 81258404), (2, 40629202), (4, 20314601), (67, 1212812), (134, 606406), (193, 421028), (268, 303203), (386, 210514), (772, 105257), (1571, 51724), (3142, 25862), (6284, 12931)]