131871728

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:789

約数の個数: 40

約数和(自身を含む): 260400000

約数和(自身を除く): 128528272

約数列:

[1, 2, 4, 8, 16, 83, 166, 199, 332, 398, 499, 664, 796, 998, 1328, 1592, 1996, 3184, 3992, 7984, 16517, 33034, 41417, 66068, 82834, 99301, 132136, 165668, 198602, 264272, 331336, 397204, 662672, 794408, 1588816, 8241983, 16483966, 32967932, 65935864, 131871728]

約数ペア:

[(1, 131871728), (2, 65935864), (4, 32967932), (8, 16483966), (16, 8241983), (83, 1588816), (166, 794408), (199, 662672), (332, 397204), (398, 331336), (499, 264272), (664, 198602), (796, 165668), (998, 132136), (1328, 99301), (1592, 82834), (1996, 66068), (3184, 41417), (3992, 33034), (7984, 16517)]