388458568

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{20849}}^1$

素因数の和:21009

約数の個数: 32

約数和(自身を含む): 776871000

約数和(自身を除く): 388412432

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 137, 274, 548, 1096, 2329, 4658, 9316, 18632, 20849, 41698, 83396, 166792, 354433, 708866, 1417732, 2835464, 2856313, 5712626, 11425252, 22850504, 48557321, 97114642, 194229284, 388458568]

約数ペア:

[(1, 388458568), (2, 194229284), (4, 97114642), (8, 48557321), (17, 22850504), (34, 11425252), (68, 5712626), (136, 2856313), (137, 2835464), (274, 1417732), (548, 708866), (1096, 354433), (2329, 166792), (4658, 83396), (9316, 41698), (18632, 20849)]