678602025

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:591

約数の個数: 72

約数和(自身を含む): 1247223744

約数和(自身を除く): 568621719

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 107, 213, 225, 321, 355, 397, 535, 639, 963, 1065, 1191, 1605, 1775, 1985, 2675, 3195, 3573, 4815, 5325, 5955, 7597, 8025, 9925, 15975, 17865, 22791, 24075, 28187, 29775, 37985, 42479, 68373, 84561, 89325, 113955, 127437, 140935, 189925, 212395, 253683, 341865, 382311, 422805, 569775, 637185, 704675, 1061975, 1268415, 1709325, 1911555, 2114025, 3016009, 3185925, 6342075, 9048027, 9557775, 15080045, 27144081, 45240135, 75400225, 135720405, 226200675, 678602025]

約数ペア:

[(1, 678602025), (3, 226200675), (5, 135720405), (9, 75400225), (15, 45240135), (25, 27144081), (45, 15080045), (71, 9557775), (75, 9048027), (107, 6342075), (213, 3185925), (225, 3016009), (321, 2114025), (355, 1911555), (397, 1709325), (535, 1268415), (639, 1061975), (963, 704675), (1065, 637185), (1191, 569775), (1605, 422805), (1775, 382311), (1985, 341865), (2675, 253683), (3195, 212395), (3573, 189925), (4815, 140935), (5325, 127437), (5955, 113955), (7597, 89325), (8025, 84561), (9925, 68373), (15975, 42479), (17865, 37985), (22791, 29775), (24075, 28187)]