39895395

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 65387520

約数和(自身を除く): 25492125

約数列:

[1, 3, 5, 15, 79, 131, 237, 257, 393, 395, 655, 771, 1185, 1285, 1965, 3855, 10349, 20303, 31047, 33667, 51745, 60909, 101001, 101515, 155235, 168335, 304545, 505005, 2659693, 7979079, 13298465, 39895395]

約数ペア:

[(1, 39895395), (3, 13298465), (5, 7979079), (15, 2659693), (79, 505005), (131, 304545), (237, 168335), (257, 155235), (393, 101515), (395, 101001), (655, 60909), (771, 51745), (1185, 33667), (1285, 31047), (1965, 20303), (3855, 10349)]