138139988

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{120331}}^1$

素因数の和:120383

約数の個数: 24

約数和(自身を含む): 283020864

約数和(自身を除く): 144880876

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 120331, 240662, 481324, 842317, 1684634, 3369268, 4933571, 9867142, 19734284, 34534997, 69069994, 138139988]

約数ペア:

[(1, 138139988), (2, 69069994), (4, 34534997), (7, 19734284), (14, 9867142), (28, 4933571), (41, 3369268), (82, 1684634), (164, 842317), (287, 481324), (574, 240662), (1148, 120331)]