81860060

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{24509}}^1$

素因数の和:24685

約数の個数: 24

約数和(自身を含む): 172942560

約数和(自身を除く): 91082500

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 24509, 49018, 98036, 122545, 245090, 490180, 4093003, 8186006, 16372012, 20465015, 40930030, 81860060]

約数ペア:

[(1, 81860060), (2, 40930030), (4, 20465015), (5, 16372012), (10, 8186006), (20, 4093003), (167, 490180), (334, 245090), (668, 122545), (835, 98036), (1670, 49018), (3340, 24509)]