128915668

素因数分解:

$2^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{5179}}^1$

素因数の和:5324

約数の個数: 36

約数和(自身を含む): 264552960

約数和(自身を除く): 135637292

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 127, 196, 254, 508, 889, 1778, 3556, 5179, 6223, 10358, 12446, 20716, 24892, 36253, 72506, 145012, 253771, 507542, 657733, 1015084, 1315466, 2630932, 4604131, 9208262, 18416524, 32228917, 64457834, 128915668]

約数ペア:

[(1, 128915668), (2, 64457834), (4, 32228917), (7, 18416524), (14, 9208262), (28, 4604131), (49, 2630932), (98, 1315466), (127, 1015084), (196, 657733), (254, 507542), (508, 253771), (889, 145012), (1778, 72506), (3556, 36253), (5179, 24892), (6223, 20716), (10358, 12446)]