18654516520

素因数分解:

$2^3\times 5^1\times {\mathrm{47837}}^1\times {\mathrm{9749}}^1$

素因数の和:57597

約数の個数: 32

約数和(自身を含む): 41977845000

約数和(自身を除く): 23323328480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9749, 19498, 38996, 47837, 48745, 77992, 95674, 97490, 191348, 194980, 239185, 382696, 389960, 478370, 956740, 1913480, 466362913, 932725826, 1865451652, 2331814565, 3730903304, 4663629130, 9327258260, 18654516520]

約数ペア:

[(1, 18654516520), (2, 9327258260), (4, 4663629130), (5, 3730903304), (8, 2331814565), (10, 1865451652), (20, 932725826), (40, 466362913), (9749, 1913480), (19498, 956740), (38996, 478370), (47837, 389960), (48745, 382696), (77992, 239185), (95674, 194980), (97490, 191348)]