19870690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9157}}^1$

素因数の和:9202

約数の個数: 32

約数和(自身を含む): 42200064

約数和(自身を除く): 22329374

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9157, 18314, 45785, 64099, 91570, 128198, 283867, 320495, 567734, 640990, 1419335, 1987069, 2838670, 3974138, 9935345, 19870690]

約数ペア:

[(1, 19870690), (2, 9935345), (5, 3974138), (7, 2838670), (10, 1987069), (14, 1419335), (31, 640990), (35, 567734), (62, 320495), (70, 283867), (155, 128198), (217, 91570), (310, 64099), (434, 45785), (1085, 18314), (2170, 9157)]