81276494

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 139024368

約数和(自身を除く): 57747874

約数列:

[1, 2, 13, 26, 37, 67, 74, 97, 134, 169, 194, 338, 481, 871, 962, 1261, 1742, 2479, 2522, 3589, 4958, 6253, 6499, 7178, 11323, 12506, 12998, 16393, 22646, 32227, 32786, 46657, 64454, 84487, 93314, 168974, 240463, 418951, 480926, 606541, 837902, 1098331, 1213082, 2196662, 3126019, 6252038, 40638247, 81276494]

約数ペア:

[(1, 81276494), (2, 40638247), (13, 6252038), (26, 3126019), (37, 2196662), (67, 1213082), (74, 1098331), (97, 837902), (134, 606541), (169, 480926), (194, 418951), (338, 240463), (481, 168974), (871, 93314), (962, 84487), (1261, 64454), (1742, 46657), (2479, 32786), (2522, 32227), (3589, 22646), (4958, 16393), (6253, 12998), (6499, 12506), (7178, 11323)]