1278628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:451

約数の個数: 24

約数和(自身を含む): 2452352

約数和(自身を除く): 1173724

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 367, 734, 871, 1468, 1742, 3484, 4771, 9542, 19084, 24589, 49178, 98356, 319657, 639314, 1278628]

約数ペア:

[(1, 1278628), (2, 639314), (4, 319657), (13, 98356), (26, 49178), (52, 24589), (67, 19084), (134, 9542), (268, 4771), (367, 3484), (734, 1742), (871, 1468)]