81981424

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{8819}}^1$

素因数の和:8917

約数の個数: 40

約数和(自身を含む): 183738240

約数和(自身を除く): 101756816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 581, 664, 1162, 1328, 2324, 4648, 8819, 9296, 17638, 35276, 61733, 70552, 123466, 141104, 246932, 493864, 731977, 987728, 1463954, 2927908, 5123839, 5855816, 10247678, 11711632, 20495356, 40990712, 81981424]

約数ペア:

[(1, 81981424), (2, 40990712), (4, 20495356), (7, 11711632), (8, 10247678), (14, 5855816), (16, 5123839), (28, 2927908), (56, 1463954), (83, 987728), (112, 731977), (166, 493864), (332, 246932), (581, 141104), (664, 123466), (1162, 70552), (1328, 61733), (2324, 35276), (4648, 17638), (8819, 9296)]