261749310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{122887}}^1$

素因数の和:122968

約数の個数: 32

約数和(自身を含む): 637051392

約数和(自身を除く): 375302082

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 122887, 245774, 368661, 614435, 737322, 1228870, 1843305, 3686610, 8724977, 17449954, 26174931, 43624885, 52349862, 87249770, 130874655, 261749310]

約数ペア:

[(1, 261749310), (2, 130874655), (3, 87249770), (5, 52349862), (6, 43624885), (10, 26174931), (15, 17449954), (30, 8724977), (71, 3686610), (142, 1843305), (213, 1228870), (355, 737322), (426, 614435), (710, 368661), (1065, 245774), (2130, 122887)]