28481908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^3\times {\mathrm{463}}^1$

素因数の和:513

約数の個数: 48

約数和(自身を含む): 61841920

約数和(自身を除く): 33360012

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 463, 676, 926, 1183, 1852, 2197, 2366, 3241, 4394, 4732, 6019, 6482, 8788, 12038, 12964, 15379, 24076, 30758, 42133, 61516, 78247, 84266, 156494, 168532, 312988, 547729, 1017211, 1095458, 2034422, 2190916, 4068844, 7120477, 14240954, 28481908]

約数ペア:

[(1, 28481908), (2, 14240954), (4, 7120477), (7, 4068844), (13, 2190916), (14, 2034422), (26, 1095458), (28, 1017211), (52, 547729), (91, 312988), (169, 168532), (182, 156494), (338, 84266), (364, 78247), (463, 61516), (676, 42133), (926, 30758), (1183, 24076), (1852, 15379), (2197, 12964), (2366, 12038), (3241, 8788), (4394, 6482), (4732, 6019)]