19117780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1297}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 44485056

約数和(自身を除く): 25367276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1297, 1340, 1474, 2594, 2948, 3685, 5188, 6485, 7370, 12970, 14267, 14740, 25940, 28534, 57068, 71335, 86899, 142670, 173798, 285340, 347596, 434495, 868990, 955889, 1737980, 1911778, 3823556, 4779445, 9558890, 19117780]

約数ペア:

[(1, 19117780), (2, 9558890), (4, 4779445), (5, 3823556), (10, 1911778), (11, 1737980), (20, 955889), (22, 868990), (44, 434495), (55, 347596), (67, 285340), (110, 173798), (134, 142670), (220, 86899), (268, 71335), (335, 57068), (670, 28534), (737, 25940), (1297, 14740), (1340, 14267), (1474, 12970), (2594, 7370), (2948, 6485), (3685, 5188)]