66988688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{727}}^1$

素因数の和:1191

約数の個数: 40

約数和(自身を含む): 140282688

約数和(自身を除く): 73294000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 443, 727, 886, 1454, 1772, 2908, 3544, 5759, 5816, 7088, 9451, 11518, 11632, 18902, 23036, 37804, 46072, 75608, 92144, 151216, 322061, 644122, 1288244, 2576488, 4186793, 5152976, 8373586, 16747172, 33494344, 66988688]

約数ペア:

[(1, 66988688), (2, 33494344), (4, 16747172), (8, 8373586), (13, 5152976), (16, 4186793), (26, 2576488), (52, 1288244), (104, 644122), (208, 322061), (443, 151216), (727, 92144), (886, 75608), (1454, 46072), (1772, 37804), (2908, 23036), (3544, 18902), (5759, 11632), (5816, 11518), (7088, 9451)]