81409484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 158336640

約数和(自身を除く): 76927156

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 109, 212, 218, 271, 436, 542, 689, 1084, 1378, 1417, 2756, 2834, 3523, 5668, 5777, 7046, 11554, 14092, 14363, 23108, 28726, 29539, 57452, 59078, 75101, 118156, 150202, 186719, 300404, 373438, 384007, 746876, 768014, 1536028, 1565567, 3131134, 6262268, 20352371, 40704742, 81409484]

約数ペア:

[(1, 81409484), (2, 40704742), (4, 20352371), (13, 6262268), (26, 3131134), (52, 1565567), (53, 1536028), (106, 768014), (109, 746876), (212, 384007), (218, 373438), (271, 300404), (436, 186719), (542, 150202), (689, 118156), (1084, 75101), (1378, 59078), (1417, 57452), (2756, 29539), (2834, 28726), (3523, 23108), (5668, 14363), (5777, 14092), (7046, 11554)]