20694245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 29562624

約数和(自身を除く): 8868379

約数列:

[1, 5, 11, 13, 55, 65, 103, 143, 281, 515, 715, 1133, 1339, 1405, 3091, 3653, 5665, 6695, 14729, 15455, 18265, 28943, 40183, 73645, 144715, 200915, 318373, 376259, 1591865, 1881295, 4138849, 20694245]

約数ペア:

[(1, 20694245), (5, 4138849), (11, 1881295), (13, 1591865), (55, 376259), (65, 318373), (103, 200915), (143, 144715), (281, 73645), (515, 40183), (715, 28943), (1133, 18265), (1339, 15455), (1405, 14729), (3091, 6695), (3653, 5665)]