90120789

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 153216000

約数和(自身を除く): 63095211

約数列:

[1, 3, 9, 11, 27, 33, 37, 59, 99, 111, 139, 177, 297, 333, 407, 417, 531, 649, 999, 1221, 1251, 1529, 1593, 1947, 2183, 3663, 3753, 4587, 5143, 5841, 6549, 8201, 10989, 13761, 15429, 17523, 19647, 24013, 24603, 41283, 46287, 56573, 58941, 72039, 73809, 90211, 138861, 169719, 216117, 221427, 270633, 303437, 509157, 648351, 811899, 910311, 1527471, 2435697, 2730933, 3337807, 8192799, 10013421, 30040263, 90120789]

約数ペア:

[(1, 90120789), (3, 30040263), (9, 10013421), (11, 8192799), (27, 3337807), (33, 2730933), (37, 2435697), (59, 1527471), (99, 910311), (111, 811899), (139, 648351), (177, 509157), (297, 303437), (333, 270633), (407, 221427), (417, 216117), (531, 169719), (649, 138861), (999, 90211), (1221, 73809), (1251, 72039), (1529, 58941), (1593, 56573), (1947, 46287), (2183, 41283), (3663, 24603), (3753, 24013), (4587, 19647), (5143, 17523), (5841, 15429), (6549, 13761), (8201, 10989)]