20408510345

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{18959}}^1$

素因数の和:19153

約数の個数: 32

約数和(自身を含む): 25800768000

約数和(自身を除く): 5392257655

約数列:

[1, 5, 41, 59, 89, 205, 295, 445, 2419, 3649, 5251, 12095, 18245, 18959, 26255, 94795, 215291, 777319, 1076455, 1118581, 1687351, 3886595, 5592905, 8436755, 45861821, 69181391, 99553709, 229309105, 345906955, 497768545, 4081702069, 20408510345]

約数ペア:

[(1, 20408510345), (5, 4081702069), (41, 497768545), (59, 345906955), (89, 229309105), (205, 99553709), (295, 69181391), (445, 45861821), (2419, 8436755), (3649, 5592905), (5251, 3886595), (12095, 1687351), (18245, 1118581), (18959, 1076455), (26255, 777319), (94795, 215291)]