987944048

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{678533}}^1$

素因数の和:678561

約数の個数: 40

約数和(自身を含む): 2355870048

約数和(自身を除く): 1367926000

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 678533, 1357066, 2714132, 4749731, 5428264, 8820929, 9499462, 10856528, 17641858, 18998924, 35283716, 37997848, 61746503, 70567432, 75995696, 123493006, 141134864, 246986012, 493972024, 987944048]

約数ペア:

[(1, 987944048), (2, 493972024), (4, 246986012), (7, 141134864), (8, 123493006), (13, 75995696), (14, 70567432), (16, 61746503), (26, 37997848), (28, 35283716), (52, 18998924), (56, 17641858), (91, 10856528), (104, 9499462), (112, 8820929), (182, 5428264), (208, 4749731), (364, 2714132), (728, 1357066), (1456, 678533)]