681205840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{173777}}^1$

素因数の和:173804

約数の個数: 60

約数和(自身を含む): 1842394356

約数和(自身を除く): 1161188516

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 173777, 347554, 695108, 868885, 1216439, 1390216, 1737770, 2432878, 2780432, 3475540, 4865756, 6082195, 6951080, 8515073, 9731512, 12164390, 13902160, 17030146, 19463024, 24328780, 34060292, 42575365, 48657560, 68120584, 85150730, 97315120, 136241168, 170301460, 340602920, 681205840]

約数ペア:

[(1, 681205840), (2, 340602920), (4, 170301460), (5, 136241168), (7, 97315120), (8, 85150730), (10, 68120584), (14, 48657560), (16, 42575365), (20, 34060292), (28, 24328780), (35, 19463024), (40, 17030146), (49, 13902160), (56, 12164390), (70, 9731512), (80, 8515073), (98, 6951080), (112, 6082195), (140, 4865756), (196, 3475540), (245, 2780432), (280, 2432878), (392, 1737770), (490, 1390216), (560, 1216439), (784, 868885), (980, 695108), (1960, 347554), (3920, 173777)]