66880684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 133907200

約数和(自身を除く): 67026516

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 139, 247, 278, 487, 494, 556, 974, 988, 1807, 1948, 2641, 3614, 5282, 6331, 7228, 9253, 10564, 12662, 18506, 25324, 34333, 37012, 67693, 68666, 120289, 135386, 137332, 240578, 270772, 481156, 880009, 1286167, 1760018, 2572334, 3520036, 5144668, 16720171, 33440342, 66880684]

約数ペア:

[(1, 66880684), (2, 33440342), (4, 16720171), (13, 5144668), (19, 3520036), (26, 2572334), (38, 1760018), (52, 1286167), (76, 880009), (139, 481156), (247, 270772), (278, 240578), (487, 137332), (494, 135386), (556, 120289), (974, 68666), (988, 67693), (1807, 37012), (1948, 34333), (2641, 25324), (3614, 18506), (5282, 12662), (6331, 10564), (7228, 9253)]