18679945

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 24140160

約数和(自身を除く): 5460215

約数列:

[1, 5, 19, 79, 95, 131, 361, 395, 655, 1501, 1805, 2489, 7505, 10349, 12445, 28519, 47291, 51745, 142595, 196631, 236455, 983155, 3735989, 18679945]

約数ペア:

[(1, 18679945), (5, 3735989), (19, 983155), (79, 236455), (95, 196631), (131, 142595), (361, 51745), (395, 47291), (655, 28519), (1501, 12445), (1805, 10349), (2489, 7505)]