256172445

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 454289472

約数和(自身を除く): 198117027

約数列:

[1, 3, 5, 9, 15, 45, 83, 107, 249, 321, 415, 535, 641, 747, 963, 1245, 1605, 1923, 3205, 3735, 4815, 5769, 8881, 9615, 26643, 28845, 44405, 53203, 68587, 79929, 133215, 159609, 205761, 266015, 342935, 399645, 478827, 617283, 798045, 1028805, 2394135, 3086415, 5692721, 17078163, 28463605, 51234489, 85390815, 256172445]

約数ペア:

[(1, 256172445), (3, 85390815), (5, 51234489), (9, 28463605), (15, 17078163), (45, 5692721), (83, 3086415), (107, 2394135), (249, 1028805), (321, 798045), (415, 617283), (535, 478827), (641, 399645), (747, 342935), (963, 266015), (1245, 205761), (1605, 159609), (1923, 133215), (3205, 79929), (3735, 68587), (4815, 53203), (5769, 44405), (8881, 28845), (9615, 26643)]