20215996884

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{757}}^1\times {\mathrm{39043}}^1$

素因数の和:39829

約数の個数: 72

約数和(自身を含む): 53863540640

約数和(自身を除く): 33647543756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 757, 1514, 2271, 3028, 4542, 6813, 9084, 13626, 14383, 27252, 28766, 39043, 43149, 57532, 78086, 86298, 117129, 129447, 156172, 172596, 234258, 258894, 351387, 468516, 517788, 702774, 741817, 1405548, 1483634, 2225451, 2967268, 4450902, 6676353, 8901804, 13352706, 26705412, 29555551, 59111102, 88666653, 118222204, 177333306, 265999959, 354666612, 531999918, 561555469, 1063999836, 1123110938, 1684666407, 2246221876, 3369332814, 5053999221, 6738665628, 10107998442, 20215996884]

約数ペア:

[(1, 20215996884), (2, 10107998442), (3, 6738665628), (4, 5053999221), (6, 3369332814), (9, 2246221876), (12, 1684666407), (18, 1123110938), (19, 1063999836), (36, 561555469), (38, 531999918), (57, 354666612), (76, 265999959), (114, 177333306), (171, 118222204), (228, 88666653), (342, 59111102), (684, 29555551), (757, 26705412), (1514, 13352706), (2271, 8901804), (3028, 6676353), (4542, 4450902), (6813, 2967268), (9084, 2225451), (13626, 1483634), (14383, 1405548), (27252, 741817), (28766, 702774), (39043, 517788), (43149, 468516), (57532, 351387), (78086, 258894), (86298, 234258), (117129, 172596), (129447, 156172)]