19748008

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 24603992

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 59, 86, 118, 139, 172, 236, 278, 301, 344, 413, 472, 556, 602, 826, 973, 1112, 1204, 1652, 1946, 2408, 2537, 3304, 3892, 5074, 5977, 7784, 8201, 10148, 11954, 16402, 17759, 20296, 23908, 32804, 35518, 41839, 47816, 57407, 65608, 71036, 83678, 114814, 142072, 167356, 229628, 334712, 352643, 459256, 705286, 1410572, 2468501, 2821144, 4937002, 9874004, 19748008]

約数ペア:

[(1, 19748008), (2, 9874004), (4, 4937002), (7, 2821144), (8, 2468501), (14, 1410572), (28, 705286), (43, 459256), (56, 352643), (59, 334712), (86, 229628), (118, 167356), (139, 142072), (172, 114814), (236, 83678), (278, 71036), (301, 65608), (344, 57407), (413, 47816), (472, 41839), (556, 35518), (602, 32804), (826, 23908), (973, 20296), (1112, 17759), (1204, 16402), (1652, 11954), (1946, 10148), (2408, 8201), (2537, 7784), (3304, 5977), (3892, 5074)]