20508828

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{307}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 50709120

約数和(自身を除く): 30200292

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 293, 307, 586, 614, 879, 921, 1172, 1228, 1758, 1842, 3516, 3684, 5567, 5833, 11134, 11666, 16701, 17499, 22268, 23332, 33402, 34998, 66804, 69996, 89951, 179902, 269853, 359804, 539706, 1079412, 1709069, 3418138, 5127207, 6836276, 10254414, 20508828]

約数ペア:

[(1, 20508828), (2, 10254414), (3, 6836276), (4, 5127207), (6, 3418138), (12, 1709069), (19, 1079412), (38, 539706), (57, 359804), (76, 269853), (114, 179902), (228, 89951), (293, 69996), (307, 66804), (586, 34998), (614, 33402), (879, 23332), (921, 22268), (1172, 17499), (1228, 16701), (1758, 11666), (1842, 11134), (3516, 5833), (3684, 5567)]