12920456

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{509}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 25704000

約数和(自身を除く): 12783544

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 167, 334, 509, 668, 1018, 1336, 2036, 3173, 4072, 6346, 9671, 12692, 19342, 25384, 38684, 77368, 85003, 170006, 340012, 680024, 1615057, 3230114, 6460228, 12920456]

約数ペア:

[(1, 12920456), (2, 6460228), (4, 3230114), (8, 1615057), (19, 680024), (38, 340012), (76, 170006), (152, 85003), (167, 77368), (334, 38684), (509, 25384), (668, 19342), (1018, 12692), (1336, 9671), (2036, 6346), (3173, 4072)]