71832740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1319}}^1$

素因数の和:1724

約数の個数: 48

約数和(自身を含む): 172972800

約数和(自身を除く): 101140060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1319, 1556, 1945, 2638, 2723, 3890, 5276, 5446, 6595, 7780, 9233, 10892, 13190, 13615, 18466, 26380, 27230, 36932, 46165, 54460, 92330, 184660, 513091, 1026182, 2052364, 2565455, 3591637, 5130910, 7183274, 10261820, 14366548, 17958185, 35916370, 71832740]

約数ペア:

[(1, 71832740), (2, 35916370), (4, 17958185), (5, 14366548), (7, 10261820), (10, 7183274), (14, 5130910), (20, 3591637), (28, 2565455), (35, 2052364), (70, 1026182), (140, 513091), (389, 184660), (778, 92330), (1319, 54460), (1556, 46165), (1945, 36932), (2638, 27230), (2723, 26380), (3890, 18466), (5276, 13615), (5446, 13190), (6595, 10892), (7780, 9233)]