81881072

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56237}}^1$

素因数の和:56265

約数の個数: 40

約数和(自身を含む): 195258336

約数和(自身を除く): 113377264

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 56237, 112474, 224948, 393659, 449896, 731081, 787318, 899792, 1462162, 1574636, 2924324, 3149272, 5117567, 5848648, 6298544, 10235134, 11697296, 20470268, 40940536, 81881072]

約数ペア:

[(1, 81881072), (2, 40940536), (4, 20470268), (7, 11697296), (8, 10235134), (13, 6298544), (14, 5848648), (16, 5117567), (26, 3149272), (28, 2924324), (52, 1574636), (56, 1462162), (91, 899792), (104, 787318), (112, 731081), (182, 449896), (208, 393659), (364, 224948), (728, 112474), (1456, 56237)]