655967889

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{4457}}^1$

素因数の和:4571

約数の個数: 40

約数和(自身を含む): 1035682560

約数和(自身を除く): 379714671

約数列:

[1, 3, 9, 23, 27, 69, 79, 81, 207, 237, 621, 711, 1817, 1863, 2133, 4457, 5451, 6399, 13371, 16353, 40113, 49059, 102511, 120339, 147177, 307533, 352103, 361017, 922599, 1056309, 2767797, 3168927, 8098369, 8303391, 9506781, 24295107, 28520343, 72885321, 218655963, 655967889]

約数ペア:

[(1, 655967889), (3, 218655963), (9, 72885321), (23, 28520343), (27, 24295107), (69, 9506781), (79, 8303391), (81, 8098369), (207, 3168927), (237, 2767797), (621, 1056309), (711, 922599), (1817, 361017), (1863, 352103), (2133, 307533), (4457, 147177), (5451, 120339), (6399, 102511), (13371, 49059), (16353, 40113)]