51640890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{245909}}^1$

素因数の和:245926

約数の個数: 32

約数和(自身を含む): 141644160

約数和(自身を除く): 90003270

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 245909, 491818, 737727, 1229545, 1475454, 1721363, 2459090, 3442726, 3688635, 5164089, 7377270, 8606815, 10328178, 17213630, 25820445, 51640890]

約数ペア:

[(1, 51640890), (2, 25820445), (3, 17213630), (5, 10328178), (6, 8606815), (7, 7377270), (10, 5164089), (14, 3688635), (15, 3442726), (21, 2459090), (30, 1721363), (35, 1475454), (42, 1229545), (70, 737727), (105, 491818), (210, 245909)]