129287480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{65963}}^1$

素因数の和:65988

約数の個数: 48

約数和(自身を含む): 338395320

約数和(自身を除く): 209107840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 65963, 131926, 263852, 329815, 461741, 527704, 659630, 923482, 1319260, 1846964, 2308705, 2638520, 3232187, 3693928, 4617410, 6464374, 9234820, 12928748, 16160935, 18469640, 25857496, 32321870, 64643740, 129287480]

約数ペア:

[(1, 129287480), (2, 64643740), (4, 32321870), (5, 25857496), (7, 18469640), (8, 16160935), (10, 12928748), (14, 9234820), (20, 6464374), (28, 4617410), (35, 3693928), (40, 3232187), (49, 2638520), (56, 2308705), (70, 1846964), (98, 1319260), (140, 923482), (196, 659630), (245, 527704), (280, 461741), (392, 329815), (490, 263852), (980, 131926), (1960, 65963)]