243442640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{434719}}^1$

素因数の和:434739

約数の個数: 40

約数和(自身を含む): 646863360

約数和(自身を除く): 403420720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 434719, 869438, 1738876, 2173595, 3043033, 3477752, 4347190, 6086066, 6955504, 8694380, 12172132, 15215165, 17388760, 24344264, 30430330, 34777520, 48688528, 60860660, 121721320, 243442640]

約数ペア:

[(1, 243442640), (2, 121721320), (4, 60860660), (5, 48688528), (7, 34777520), (8, 30430330), (10, 24344264), (14, 17388760), (16, 15215165), (20, 12172132), (28, 8694380), (35, 6955504), (40, 6086066), (56, 4347190), (70, 3477752), (80, 3043033), (112, 2173595), (140, 1738876), (280, 869438), (560, 434719)]