18780368

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{17519}}^1$

素因数の和:17594

約数の個数: 20

約数和(自身を含む): 36932160

約数和(自身を除く): 18151792

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 17519, 35038, 70076, 140152, 280304, 1173773, 2347546, 4695092, 9390184, 18780368]

約数ペア:

[(1, 18780368), (2, 9390184), (4, 4695092), (8, 2347546), (16, 1173773), (67, 280304), (134, 140152), (268, 70076), (536, 35038), (1072, 17519)]