989718128

素因数分解:

$2^4\times 7^1\times {\mathrm{449}}^1\times {\mathrm{19681}}^1$

素因数の和:20145

約数の個数: 40

約数和(自身を含む): 2196511200

約数和(自身を除く): 1206793072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 449, 898, 1796, 3143, 3592, 6286, 7184, 12572, 19681, 25144, 39362, 50288, 78724, 137767, 157448, 275534, 314896, 551068, 1102136, 2204272, 8836769, 17673538, 35347076, 61857383, 70694152, 123714766, 141388304, 247429532, 494859064, 989718128]

約数ペア:

[(1, 989718128), (2, 494859064), (4, 247429532), (7, 141388304), (8, 123714766), (14, 70694152), (16, 61857383), (28, 35347076), (56, 17673538), (112, 8836769), (449, 2204272), (898, 1102136), (1796, 551068), (3143, 314896), (3592, 275534), (6286, 157448), (7184, 137767), (12572, 78724), (19681, 50288), (25144, 39362)]