639261232

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{10567}}^1$

素因数の和:10793

約数の個数: 40

約数和(自身を含む): 1310432000

約数和(自身を除く): 671170768

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 199, 304, 398, 796, 1592, 3184, 3781, 7562, 10567, 15124, 21134, 30248, 42268, 60496, 84536, 169072, 200773, 401546, 803092, 1606184, 2102833, 3212368, 4205666, 8411332, 16822664, 33645328, 39953827, 79907654, 159815308, 319630616, 639261232]

約数ペア:

[(1, 639261232), (2, 319630616), (4, 159815308), (8, 79907654), (16, 39953827), (19, 33645328), (38, 16822664), (76, 8411332), (152, 4205666), (199, 3212368), (304, 2102833), (398, 1606184), (796, 803092), (1592, 401546), (3184, 200773), (3781, 169072), (7562, 84536), (10567, 60496), (15124, 42268), (21134, 30248)]