40320144

素因数分解:

$2^4\times 3^2\times {\mathrm{280001}}^1$

素因数の和:280015

約数の個数: 30

約数和(自身を含む): 112840806

約数和(自身を除く): 72520662

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 280001, 560002, 840003, 1120004, 1680006, 2240008, 2520009, 3360012, 4480016, 5040018, 6720024, 10080036, 13440048, 20160072, 40320144]

約数ペア:

[(1, 40320144), (2, 20160072), (3, 13440048), (4, 10080036), (6, 6720024), (8, 5040018), (9, 4480016), (12, 3360012), (16, 2520009), (18, 2240008), (24, 1680006), (36, 1120004), (48, 840003), (72, 560002), (144, 280001)]