81316144

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55849}}^1$

素因数の和:55877

約数の個数: 40

約数和(自身を含む): 193911200

約数和(自身を除く): 112595056

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 55849, 111698, 223396, 390943, 446792, 726037, 781886, 893584, 1452074, 1563772, 2904148, 3127544, 5082259, 5808296, 6255088, 10164518, 11616592, 20329036, 40658072, 81316144]

約数ペア:

[(1, 81316144), (2, 40658072), (4, 20329036), (7, 11616592), (8, 10164518), (13, 6255088), (14, 5808296), (16, 5082259), (26, 3127544), (28, 2904148), (52, 1563772), (56, 1452074), (91, 893584), (104, 781886), (112, 726037), (182, 446792), (208, 390943), (364, 223396), (728, 111698), (1456, 55849)]